Vladimir Ivanovich Ritus (on his ninetieth birthday)
Boris M. Bolotovsky,Mikhail A. Vasiliev,Boris L. Voronov,Aleksandr V. Gurevich,Kirill P. Zybin,Nikolai S. Kardashev,Anatolii I. Nikishov,M.A. Solov'ev,Sergei M. Stishov,Igor V. Tyutin,Vladimir E. Fortov,Anatolii E. Shabad
