| Unconfirmed Minutes, 10.09.1963-13.09.1963 of the meeting.
Activity Report, 01.04.1964(?)of the Group. The report concerns its 2nd and 3rd meetings.
Letter, A.P. Ershov->W. L. van der Poel, 18.02.1964The author cannot attend the meeting and makes some remarks to its agenda.
Initial order | In alphabetical order | By date |
