Geological Journal

1986. V. 21 2

1980. V. 15 № 1,2

1979. V. 14 № 1,2

1978. V. 13 № 1,2

1977. V. 12 № 1,2

1976. V. 11 № 1,2

1974. V. 9 № 1,2

1972/73. V. 8 № 1,2