The author thanks A.Ershov and his colleagues for a hearty welcome during his visit to Akademgorodok to attend the IFIR Working Group meeting

with official invitation

Official invitation from directors of Mathematics Institute of Munich Technical University (original text and Russian translation)

The Programming Methodology Lecture Series has been brought to a successive conclusion. The unusial productivity of the Santa Cruz WG meeting was partly due to the Lecture Series activities. Thanks for the fellowships provided by IFIP and a report on how money was used.

a proposition to be a chairman of one of the sessions at the WC

invitation for a research stay at the Institut fur Informatik from July 30 to August 15, 1984

hopes that, during his stay at the Instiute, A.P. Ershov could visit the Summer School and give one or two presentations as "special lecturer"

The author regretfully informs that he has failed to combine Berlin and Munnich visits in one trip.

informing of the IFIP 25th anniversary Symposium and inviting Ershov to speak at the discussion initiated by Dr. T. Kitagawa's lecture "Man and machine viewed from different cultural backgrounds"