Bull. Acad. Sci. USSR, Phys. Ser., v. 34, no. 9, pp. 1759-1763; Conference: All-Union conference on cosmic ray physics, Leningrad, USSR, 9 Oct 1969; Other Information: Orig. Receipt Date: 30-JUN-76; Other Information: Translated from Izv. Akad. Nauk SSSR, Ser. Fiz.; 34: No. 9, 1977-1981(Sep 1970)