about a special issue of the journal "New Generation Computing" on mixed computation planned for the next year; A.P. Ershov is invited to be one of its guest editors

about political campaign in the USA apropos of IJCAI-4

Invitation to the IJCAI-4 Program Committee session to be held in Cambridge on June 12-20, 1975

It is the first letter about Panel discussion "Tough Nuts of Computer Science".

from SIGART Newsletter N47-48 discussing the letter by J.Minker urging to hold IJCAI-4 in another country or to boycott it, and reaction of prominent scientists.

on the scientific trip to the USA by delegation consisting of A.P. Ershov, S.I. Samoilenko, and V.I. Briabrin

Report on preparation to the IFIP 80 Congress.

with Ershov's handwritten remarks

by E.Sandeval with consent to join the panel discussion "Natural Language Understanding".

Request to confirm assent to receive Sandewall and Winston in the beginning of January

in the name of Committee of Concerned Scientists on situation with inviting A. Lerner to IJCAI-4; threat of conference boycott by political reasons.

expressing concern about A. Lerner's participation in IJCAI-4, in particular - in panel discussion "Cybernetics and Artificial Intelligence"

The author proposes two "tough nuts" for the panel discussion.

on the panel discussion "Tough Nuts of Computer Science"

to the list of potential participants of the panel and to the comments on the panel discussion "Tough Nuts of Computer Science".

Formal invitation to attend the 9th World Computer Congress and to participate in the Panel discussion.

with the request to make some organizational changes to the Conference program