Proceedings of the Indian Academy of Sciences. Ser. Mathematical Sciences

1988. V. 98 № 1,2-3

1987. V. 97 № Special.

          V. 96 № 1,2

1986. V. 95 № 1,2

1985. V. 94 № 1

1984. V. 93 № 1,2-3

1983. V. 92 № 1,2,3

1982. V. 91 № 1,2,3

1981. V. 90 № 1,2,3

1980. V. 89 № 1,2,3

1979. V. 88 № 1,2,4,5

1978. V. 87 № 2,5,9

1977. V. 86 № 4,6