“…Since 1991 to 2006, he had been an invited speaker at major international conferences on antenna and microwave theory and techniques and had given lectures and talks on statistical antenna theory and antennas with nonlinear elements in 17 countries around the world, including Japan, Poland, France, the USA, Germany, the Netherlands, China, etc. [2]. He met prominent scientists from those countries, and some of them became his friends for many years.…”