Leonid A. Bulavin, Dr of Phys.-Math. Sci. (1989) is Professor of Physics at Kiyv National Shevchenko University, Correspondence Member of the National Academy of Sciences of Ukraine.Yury F. Zabashta, Dr of Phys.-Math. Sci. (1992) is Professor of Physics at Kiyv National Shevchenko University. Both authors have published on the interaction of waves with matter.