18-Sep-67, A.A. Kirillov.
18-Sep-67, D.B. Fuchs.
25-Sep-67, I.M. Gelfand.
25-Sep-67, D.B. Fuchs.
2-Oct-67, D.B. Fuchs.
2-Oct-67, I.M. Gelfand. Plan
16-Oct-67, S.G. Krein.
16-Oct-67, Ya.G. Sinai.
23-Oct-67, Jean Leray.
30-Oct-67, Ya.G. Sinai.
YEAR 1968, -. YEAR 1968
12-Feb-68, I.M. Gelfand.
12-Feb-68, I.N. Bernstein.
11-Mar-68, I.M. Gelfand.
11-Mar-68, L.G. Makar-Limanov.
11-Mar-68, V.P. Palamodov.
18-Mar-68, V.P. Palamodov.