Articles in Refereed Journals

1. V.G. Galushko, V.V. Vinogradov and Y.G. Shkuratov: Millimeter Wave Satellite Radar for Investigation of the Moon's Surface: A Proposal, Radio Physics and Radio Astronomy, Vol. 23, #3, pp.212-228 (2018) (in Russian)

2. A.A. Konovalenko, D.M. Vavriv, V.V. Vinogradov, R.V. Kozhin, A.A. Kravtsov, E.V. Bulakh and A.I. Kuzin: The modern radio astronomy network in Ukraine: UTR-2, URAN and GURT, Experimental Astronomy, Vol. 42, #1, pp.11-48 (2016)

3. G.V. Litvinenko, V.E. Shaposhnikov, A.A. Konovalenko, V.V. Zakharenko, M. Panchenko, V.V. Dorovsky, A.I. Brazhenko, H.O. Rucker, V.V. Vinogradov and V.N. Melnik: Quasi-similar decameter emission features appearing in the solar and jovian dynamic spectra, Icarus, Vol. 272, pp.80-87 (2016)

4. V.V. Zakharenko, D.M. Vavriv, V.V. Vinogradov, R.V. Kozhin, A.A. Kravtsov, E.V. Bulakh, A.I. Kuzin and V.B. Ryabov: Digital receivers for low-frequency radio telescopes UTR-2, URAN, GURT, Journal of Astronomical Instrumentation, Vol. 5, #4, pp.1-19 (2016)

5. U. Goersdorf, V. Lehmann, M. Bauer-Pfundstein, G. Peters, D.M. Vavriv, V.V. Vinogradov and V.A. Volkov: A 35-GHz Polarimetric Doppler Radar for Long-Term Observations of Cloud Parameters - Description of System and Data Processing, Journal of Atmospheric and Oceanic Technology, Vol. 32, #4, pp.675-690 (2015)

6. O.O. Bezvesilniy, D.M. Vavriv, V.A. Volkov, A.A. Kravtsov, E.V. Bulakh, V.V. Vinogradov and S.S. Sekretarov: Experimental Ka-Band Ground-Based SAR System, Radiofizika i Radioastronomia, Vol. 20, #2, pp.154-167 (2015)

7. V.V. Vinogradov, V.A. Volkov, S.V. Sosnytskiy, D.M. Vavriv, O.Y. Vasilyev, E.V. Bulakh, P.V. Usik and A.I. Kuzin: Wideband Digital Receiver/Pulse Analyzer, Radiofizika i Radioastronomia, Vol. 20, #2, pp.168-179 (2015) (in Russian)

8. O.Y. Vasilyev, A.I. Kuzin, A.A. Kravtsov, E.V. Bulakh, V.V. Vinogradov and D.M. Vavriv: Multifunctional Digital Receiver-Spectrometer, Radiofizika i Radioastronomia, Vol. 19, #3, pp.276-289 (2014) (in Russian)

9. O.O. Bezvesilniy, D.M. Vavriv, V.V. Vinogradov, V.A. Volkov and R.V. Kozhin: Synthetic Aperture Radar Systems for Light-Weight Aircrafts, Uspehi sovremennoy radioelektroniki, #12, pp.53-61 (2012) (in Russian)

10. O.O. Bezvesilniy, I.M. Gorovyi, S.V. Sosnytskiy, V.V. Vinogradov and D.M. Vavriv: SAR Processing Algorithm with Built-In Geometric Correction, Radiofizika i Radioastronomia, Vol. 16, #1, pp.98-108 (2011)

11. O.O. Bezvesilniy, D.M. Vavriv, V.V. Vinogradov, V.A. Volkov, R.V. Kozhin and S.S. Sekretarov: Multi-look synthetic aperture radar, Izvestiya VUZov. Radioelektronika (Kiev), Vol. 54, #10, pp.11-18 (2011) (in Russian)

12. O.O. Bezvesilniy, I.M. Gorovyi, V.V. Vinogradov and D.M. Vavriv: Multi-look radiometric correction of SAR images, Radiofizika i radioastronomiya, Vol. 16, #4, pp.424-432 (2011)

13. V.B. Ryabov, D.M. Vavriv, P. Zarka, B.P. Ryabov, R.V. Kozhin, V.V. Vinogradov and L. Denis: A low-noise, high-dynamic-range, digital receiver for radio astronomy applications: an efficient solution for observing radio-bursts from Jupiter, the Sun, pulsars, and other astrophysical plasmas below 30 MHz, Astronomy and Astrophysics, Vol. 510, pp.1-13 (2010)

14. D.M. Vavriv, O.O. Bezvesilniy, V.V. Vinogradov and I.V. Dukhopelnykova: Retrieving topography of Earth surfaces from high-accuracy Doppler centroid measurements by using an airborne synthetic aperture radar, Reports of the National Academy of Sciences of Ukraine , #4, pp.86-91 (2008) (in Russian)

15. O.O. Bezvesilniy, I.V. Dukhopelnykova, V.V. Vinogradov and D.M. Vavriv: Retrieving 3-D topography by using a single-antenna squint-mode airborne SAR, IEEE Transactions on Geoscience and Remote Sensing, Vol. 45, #11, pp.3574-3582 (2007)

16. V.B. Ryabov, B.P. Ryabov, D.M. Vavriv, P. Zarka, R.V. Kozhin, V.V. Vinogradov and A.V. Shevchenko: Jupiter S-bursts: Narrow-band origin of microsecond subpulses, Journal of Geophysical Research, pp.206-236 (2007)

17. O.O. Bezvesilniy, I.V. Dukhopelnykova, V.V. Vinogradov and D.M. Vavriv: Modified Lee Filter for Speckle Removing from Radar Images, Radiotechnika (KhNURE), #145, pp.63-70 (2006) (in Russian)

18. G.V. Litvinenko, A. Lecacheux, H.O. Rucker, A.A. Konovalenko, B.P. Ryabov, V.V. Vinogradov, V.E. Shaposhnikov and U. Taubenschuss: Modulation Effects on Dynamic Spectra of Sporadic Jovian Decameter Emission, Radio Physics and Radio Astronomy , Vol. 11, #4, pp.325 (2006) (in Russian)

19. D.M. Vavriv, V.V. Vinogradov, V.A. Volkov, R.V. Kozhin, O.O. Bezvesilniy, S.V. Alekseenkov, A.V. Shevchenko, A. Belikov, M.P. Vasilevsky and D.I. Zaikin: Cost-Effective Airborne SAR, Radio Physics and Radio Astronomy, Vol. 11, #3, pp.276-297 (2006)

20. O.O. Bezvesilniy, D.M. Vavriv and V.V. Vinogradov: Doppler centroid estimation and autofocusing for airborne side-looking radar with digital synthesized aperture, Doklady of NAS of Ukraine, #9, pp.77-83 (2005) (in Russian)

21. D.M. Vavriv, V.A. Volkov, V.N. Bormotov, V.V. Vinogradov, R.V. Kozhin, B.V. Trush, A. Belikov and V.Ye. Semenuta: Millimeter-wave radars for environmental studies., Radio Physics and Radio Astronomy, Vol. 7, #2, pp.121-138 (2002) (in Russian)

22. D.M. Vavriv, G.M. Suchkov, V.V. Vinogradov, V.A. Volkov, R.V. Kozhin and Ye.A. Alekseev: Development of an electromagnetic-acoustic thicknessmeter for controlling thin-walled tubes., Defectoscopy, #10, pp.7-13 (2002) (in Russian)

23. D.M. Vavriv, V.V. Vinogradov and S.A. Rasbeyko: Control system for meteorological complex of atmosphere remote sensing., Radio Physics and Radio Astronomy, Vol. 6, #3, pp.212-221 (2001) (in Russian)

24. O.O. Bezvesilniy, V.V. Vinogradov and K. Schuenemann: Noise reduction algorithm based on template wavelet coefficients., Radio Physics and Radio Astronomy, Vol. 5, #3, pp.301-311 (2000)

25. G.V. Litvinenko, H.O. Rucker, V.V. Vinogradov, B.P. Ryabov and V.E. Shaposhnikov: Noise nature investigation of sporadic Jovian decameter emission., Radio Sci., Vol. 35, #6, pp.1445-1454 (2000)

26. D.V. Shygimaga, D.M. Vavriv and V.V. Vinogradov: Chaos due to the interaction of high- and low-frequency modes. , IEEE Trans. CAS, Vol. 45, #12, pp.1255-1259 (1998)

27. V.V. Vinogradov and G.V. Litvinenko: Investigation of emissio thunder discharges using wavelet analysis technique., Radio Physics and Radio Astronomy, Vol. 3, #2, pp.198-203 (1998) (in Russian)

28. D.M. Vavriv, V.V. Vinogradov and D.V. Shygimaga: Chaos due to the interaction of high- and low-frequency modes., Radiotekhnika i Elektronika, Vol. 42, #2, pp.197-203 (1997) (in Russian)

29. V.B. Ryabov, A.V. Stepanov, P.V. Usik, V.V. Vinogradov, D.M. Vavriv and Yu.F. Yurovsky: From chaotic to 1/f processes in solar mcw-bursts., Astronomy and Astrophysics, Vol. 324, pp.750-762 (1997)

30. D.M. Vavriv, A.V. Stepanov, V.V. Vinogradov and Yu.F. Yurovsky: 1/f processes in Solar emission., Kinemat. i Fizika Nebes. Tel, Vol. 11, #6, pp.34-41 (1995) (in Russian)

Presentations on International Meetings

31. D.M. Vavriv, V.A. Volkov and V.V. Vinogradov: Development of Doppler Polarimetric Cloud Radar Systems, IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing Symposium, July 07-12, Athens, Greece (2024)

32. S.S. Sekretarov, D.M. Vavriv, V.V. Vinogradov, A.A. Kravtsov, E.V. Bulakh and V.A. Zolotarev: Frequency Scanning X-Band Antenna for 3D Radar Systems, 53rd European Microwave Conference (EuMC), 19-21 September 2023, Berlin, Germany, pp.959-962 (2023)

33. V.A. Volkov, D.M. Vavriv, V.V. Vinogradov, E.V. Bulakh, A.A. Kravtsov and V. Ksenofontov: A High Power Compact X-Band RF Front-End for Weather Radar Applications, in Proc. of 2020 IEEE International Radar Conference, April 28 - 30, 2020, Washington, USA, pp.778-781 (2020)

34. D.M. Vavriv, V.A. Volkov, V.V. Vinogradov, A.A. Kravtsov, E.V. Bulakh, S.V. Sosnytskiy, S.S. Sekretarov, O.G. Nechayev, V.N. Gikalov, K.V. Gordeev, O.M. Suvid, A.V. Kondrikov and A.B. Kluchko: Surveillance Radar OKO: an Effective Instrument for Security Applications, 2018 9th International Conference on Ultrawideband and Ultrashort Impulse Signals, Odessa, Ukraine, September 4-7, pp.63-68 (2018)

35. Y.G. Shkuratov, A.A. Konovalenko, V.V. Zakharenko, A.A. Stanislavsky, E.Y. Bannikova, V.G. Kaydash, D.M. Vavriv, V.G. Galushko, V.V. Vinogradov and L.N. Litvinenko: Objectives of a prospective Ukrainian orbiter mission to the Moon, 17th Ukrainian Conference Space Research, Odesa, Ukraine, August 21-25, pp.11 (2017) (in Russian)

36. D.M. Vavriv, O.O. Bezvesilniy, R.V. Kozhin, V.V. Vinogradov, V.A. Volkov, I.M. Gorovyi and S.S. Sekretarov: X-Band SAR System for Light-Weight Aircrafts, Proceedings of the 15th International Radar Symposium (IRS 2014) (June 16-18, Gdansk, Poland), pp.501-505 (2014)

37. D.M. Vavriv, O.O. Bezvesilniy, A. Belikov, E.V. Bulakh, V.V. Vasyliev, V.V. Vinogradov, V.S. Vovchenko, V.A. Volkov, K.V. Gordeev, R.V. Kozhin, A.A. Kravtsov, A.P. Popov, S.S. Sekretarov, V.Ye. Semenuta, G.V. Solovyov, O.M. Suvid and L.V. Shevtsova: Development of MM-Wavelength Meteorological Radars at the Institute of Radio Astronomy of NAS of Ukraine, Proceedings of the First Ukrainian Conference "Electromagnetic Methods of Environmental Studies" (EMES-2012) (Kharkov, Ukraine, September 25-27, 2012), pp.77-82 (2012) (in Russian)

38. D.M. Vavriv, O.O. Bezvesilniy, R.V. Kozhin, V.V. Vinogradov, V.A. Volkov and S.S. Sekretarov: SAR Systems for Light-Weight Aircrafts, Proceedings of the 2011 Microwaves, Radar and Remote Sensing Symposium (August 25-27, 2011, Kiev, Ukraine), pp.15-19 (2011)

39. O.O. Bezvesilniy, I.M. Gorovyi, V.V. Vinogradov and D.M. Vavriv: Range-Doppler Algorithm with Extended Number of Looks, Proceedings of the 2011 Microwaves, Radar and Remote Sensing Symposium (August 25-27, 2011, Kiev, Ukraine), pp.203-206 (2011)

40. O.O. Bezvesilniy, I.M. Gorovyi, V.V. Vinogradov and D.M. Vavriv: Correction of Radiometric Errors by Multi-Look Processing with Extended Number of looks, Proceedings of the 11th Int. Radar Symposium (IRS-2010). June 16-18, Vilnius, Lithuania, Vol. 1, pp.26-29 (2010)

41. O.O. Bezvesilniy, I.M. Gorovyi, S.V. Sosnytskiy, V.V. Vinogradov and D.M. Vavriv: Multi-Look Stripmap SAR Processing Algorithm with Built-In Correction of Geometric Distortions, Proceedings of the European Conference on Synthetic Aperture Radar (EuSAR'2010), 7-10 June 2010, Aachen, Germany, pp.712-715 (2010)

42. I.M. Gorovyi, O.O. Bezvesilniy, V.V. Vinogradov and D.M. Vavriv: Correction of Radiometric Errors by Multi-look Processing with Extended Number of Looks., 6th Int. Young Scientist Conference "Modern Issues in Radio Engineering and Telecommunications" (RT-2010). April 19-24, Sevastopol, Crimea, Ukraine, pp.343 (2010) (in Russian)

43. I.M. Gorovyi, O.O. Bezvesilniy, S.V. Sosnytskiy, V.V. Vinogradov and D.M. Vavriv: Multi-look SAR Processing with Built-in Geometric Correction, 6th Int. Young Scientist Conference "Modern Issues in Radio Engineering and Telecommunications" (RT-2010). April 19-24, Sevastopol, Crimea, Ukraine, pp.344 (2010) (in Russian)

44. O.O. Bezvesilniy, I.M. Gorovyi, S.V. Sosnytskiy, V.V. Vinogradov and D.M. Vavriv: Multi-Look SAR Processing with Build-in Geometric Correction, Proceedings of the 11th Int. Radar Symposium (IRS-2010). June 16-18, Vilnius, Lithuania, Vol. 1, pp.30-33 (2010)

45. V.V. Zakharenko, C. Milostnaya, A.A. Konovalenko, G.V. Litvinenko, G. Fischer, J.-M. Greissmeier, P. Zarka, B.P. Ryabov, D.M. Vavriv, V.B. Ryabov, H.O. Rucker, P. Ravier, M. Sidorchuk, B. Cecconi, A. Coffre, L. Denis, C. Fabrice, R.V. Kozhin, D. Mukha, L. Pallier, J. Schneider, V. Shevchenko, V.V. Vinogradov, R. Weber and V. Nikolaenko: Ground-Based and Space Observations of Planetary Thunderstorm Activity, Proceedings of the Seventh International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW'2010), 21-26 June 2010, Kharkov, Ukraine, pp.1 - 3 (2010)

46. O.O. Bezvesilniy, I.M. Gorovyi, S.V. Sosnytskiy, V.V. Vinogradov and D.M. Vavriv: Improving SAR Images: Built-In Geometric and Multi-Look Radiometric Corrections, Proceedings of the 7th European Radar Conference (EuRAD'2010), 30 September - 1 October 2010, Paris, France, pp.256-259 (2010)

47. D.M. Vavriv, O.O. Bezvesilniy and V.V. Vinogradov: High-Accuracy Doppler Measurements for Airborne SAR Imaging, Proceedings of the Microwaves, Radar and Remote Sensing Symposium (MRRS-2008), Kiev, Ukraine, September 22-24, 2008, pp.226-231 (2008)

48. O.O. Bezvesilniy, V.V. Vinogradov and D.M. Vavriv: High-Accuracy Doppler Measurements for Airborne SAR Applications, Proceedings of the 5th European Radar Conference (EuRAD'2008), 30–31 October 2008, Amsterdam, The Netherlands, pp.29-32 (2008)

49. D.M. Vavriv, O.O. Bezvesilniy, V.V. Vinogradov, V.A. Volkov, R.V. Kozhin and I.V. Dukhopelnykova: High-accuracy doppler signal processing: techniques and applications, MSMW’07 Symposium Proceedings. Kharkov, Ukraine, June 25-30, 2007, pp.153-158 (2007)

50. R.V. Kozhin, V.V. Vinogradov and D.M. Vavriv: Low-noise, high dynamic range digital receiver/spectrometer for radio astronomy applications, MSMW’07 Symposium Proceedings. Kharkov, Ukraine, June 25-30, 2007, pp.736-738 (2007)

51. O.O. Bezvesilniy, I.V. Dukhopelnykova, V.V. Vinogradov, D.M. Vavriv and K. Schuenemann: Homogeneity Criteria for Lee and Wavelet-Based Speckle Reduction Filters, Proceedings of the 6th European Conference on Synthetic Aperture Radar EUSAR2006, Dresden, Germany, May 16-18 (2006)

52. O.O. Bezvesilniy, I.V. Dukhopelnykova, V.V. Vinogradov and D.M. Vavriv: Retrieving 3D Relief from Radar Returns with Single-Antenna, Strip-Map Airborne SAR, Proceedings of the 6th European Conference on Synthetic Aperture Radar EUSAR2006, Dresden, Germany, May 16-18 (2006)

53. O.O. Bezvesilniy, I.V. Dukhopelnykova, V.V. Vinogradov and D.M. Vavriv: Retrieving 3D relief by using a single-antenna, squint-mode airborne SAR, Proceedings of the 3rd European Radar Conference (EuRAD'2006), 2006, Manchester, UK, pp.288-291 (2006)

54. D.M. Vavriv, V.V. Vinogradov, V.A. Volkov, R.V. Kozhin, O.O. Bezvesilniy, S.V. Alekseenkov, A.V. Shevchenko and M.P. Vasilevsky: Cost-effective Ku-band airborne SAR with Doppler centroid estimation, autofocusing and indication of moving targets, Proceedings of the 2nd European Radar Conference EuRAD2005, Paris, France, pp.21-24 (2005)

55. D.M. Vavriv, V.V. Vinogradov, V.A. Volkov, R.V. Kozhin, O.O. Bezvesilniy, S.V. Alekseenkov, A.V. Shevchenko and M.P. Vasilevsky: Low-Cost SAR for Light-Weight Aircraft Platform, Proceedings of the International Workshop on Microwaves, Radar and Remote Sensing MRRS 2005, Kiev, Ukraine, pp.38-44 (2005)

56. O.O. Bezvesilniy, V.V. Vinogradov and D.M. Vavriv: Estimating Doppler centroid and autofocusing for airborne SAR, Proceedings of the International Radar Symposium IRS 2005, Berlin, Germany, pp.59-63 (2005)

57. D.M. Vavriv, V.V. Vinogradov, V.A. Volkov, R.V. Kozhin, O.O. Bezvesilniy, S.V. Alekseenkov, A.V. Shevchenko and M.P. Vasilevsky: Cost-effective Ku-band airborne SAR with indication of moving targets, Proceedings of the International Radar Symposium IRS 2005, Berlin, Germany, pp.203-207 (2005)

58. Ye.A. Alekseev, A. Belikov, R.V. Kozhin, K. Schuenemann, A.V. Shevchenko, D.M. Vavriv, V.A. Volkov and V.V. Vinogradov: 118-178 GHz Synthesized Sweep Oscillator., Proceedings of the 34-th European Microwave Conference, October 11-15, , Amsterdam, The Netherlands, pp.761-764 (2004)

59. V.V. Vinogradov, D.M. Vavriv and S.A. Rasbeyko: Using the Internet for Meteorological Radars Networking., Proceedings of the First European Radar Conference, October 11-15, Amsterdam, The Netherlands, pp.49-52 (2004)

60. D.M. Vavriv, V.V. Vinogradov, V.A. Volkov, R.V. Kozhin, O.O. Bezvesilniy, S.V. Alekseenkov, A.V. Shevchenko and M.P. Vasilevsky: An Airborne SAR With Indication Of Moving Targets., Symposium Proceedings of the Fifth International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter, and SubMillimeter Waves Kharkov, Ukraine June 21-26, Vol. 1, pp.115-119 (2004)

61. O.O. Bezvesilniy, V.V. Vinogradov, D.M. Vavriv and K. Schuenemann: Wavelet-Based Image Processing: Edge Detection and Noise Reduction., Proc. of 17th Intern. Conference on Applied Electromagnetics and Communications, October 1-3, Dubrovnik, Croatia, pp.123-126 (2003)

62. G.V. Litvinenko, V.V. Vinogradov, H.O. Rucker, M. Leitner and V.E. Shaposhnikov: Complex analysis of the Jovian S-bursts internal structure. //, EGS-AGU-EUG Joint Assembly, Nice, France, 06 - 11 April.-in Geophysical Research Abstracts, Vol. 5, pp.03772 (2003)

63. O.O. Bezvesilniy, K. Schuenemann, D.M. Vavriv and V.V. Vinogradov: Radar image processing by wavelet edge analysis", , pp., Proceedings of German Radar Symposium - 2002, September 3-5, Bonn, Germany, pp.253-257 (2002)

64. D.M. Vavriv, V.A. Volkov, V.V. Vinogradov, R.V. Kozhin and K. Schuenemann: 95 GHz Doppler polarimetric cloud radar based on a magnetron transmitter., 32nd Microwave European Conference, September 23-27, Milano, Italy (2002)

65. O.O. Bezvesilniy, V.V. Vinogradov and K. Schuenemann: Image denoising algorithm based on template wavelet coefficients., Proc. of the 5th International Workshop held at Graz, Austria, pp.407 (2001)

66. G.V. Litvinenko, H.O. Rucker, V.V. Vinogradov, B.P. Ryabov and V.E. Shaposhnikov: Some results of the Jovian DAM emission investigation with wavelet analysis technique., Proc. of the 5th International Workshop held at Graz, Austria, pp.113 (2001)

67. V.N. Bormotov, G. Peters, K. Schuenemann, D.M. Vavriv, V.V. Vinogradov and V.A. Volkov: 36 GHz Doppler radar for remote sensing of the atmosphere., Proc. of Millennium Conf. on Antennas and Propagation, Davos (2000)

68. V.N. Bormotov, G. Peters, K. Schuenemann, D.M. Vavriv, V.V. Vinogradov and V.A. Volkov: 95 GHz Doppler Cloud Radar Based on Magnetron Transmitter., MST9 - COST 76 Workshop, France, Toulouse (2000)

69. M. Jenett, R.V. Kozhin, K. Schuenemann, D.M. Vavriv and V.V. Vinogradov: A universal data acquisition system for radar applications., Int. Geoscience and Remote Sensing Symposium, Hamburg (1999)

70. M. Jenett, V.I. Kazantsev, A. Kurekin, K. Schuenemann, D.M. Vavriv, V.V. Vinogradov and V.A. Volkov: Dual 94 and 36 GHz radar system for remote sensing applications., Int. Geoscience and Remote Sensing Symposium, Hamburg (1999)

71. G.V. Litvinenko and V.V. Vinogradov: Wavelet analysis of the ELF radio noises produced by the lightning activity, (Abstract)., XXIII General Assembley of European Geophysical Society (Nice), pp.1018 (1998)

72. V.V. Vinogradov and G.V. Litvinenko: Wavelet Analysis of the ELF Signatures of Global Thunderstorm Activity., VII-th International Conference on Mathematical Methods in Electromagnetic Theory (Kharkov, Ukraine), pp.285-288 (1998)

73. D.V. Shygimaga, D.M. Vavriv and V.V. Vinogradov: Chaos due to the interaction of high- and low-frequency modes., Proc. of 14-th International Conference on Noise in Physical Systems and 1/f Fluctuations, Belgium (1997)

74. D.V. Shygimaga, D.M. Vavriv and V.V. Vinogradov: Chaos due to interaction og high- and low-frequency modes., German-Ukrainian Seminar “Microwave Electronics: Theory, Devices, and Applications”. April 23, Kharkov, Ukraine, pp.69 - 77 (1996)