Being IFIP 80 PC member Ershov will be able to visit Amsterdam several times. He will be glad to stay in September in Netherlands one or two days more for seeing van Wijngaarden and Dijkstra.

Ershov informs that IFIP will cover his living expenses in Amsterdam during PC meeting.

connected with Ershov's arrival to Amsterdam.

Original and Russian texts of two documents: a) a letter which concerns organizational issues of the first PC meeting; b) a list of PC members as of April 25, 1978.

indicating the term of the first PC meeting.

with location of the "Jan Luyken" Hotel (Amsterdam).

Van Wijngaarden invites Ershov to visit him in Amsterdam.

which confirms Ershov's hotel reservation as well as covering his living expenses during the PC meeting.

on Ershov's trip to the first PC meeting.

informing that IFIP will cover Ershov's living expenses in Amsterdam.

for the telegram which informs that IFIP consents to pay for Ershov's sojourn in Amsterdam.

with days of Ershov's arrival to and depart from the IFIP 80 PC meeting in Amsterdam.

with date of the trip to Amsterdam.

urging to investigate IFIP's possibilities to cover author's living expenses during the Program Committee meeting in Amsterdam.

asking to find a way of payment for the stay in Amsterdam during the IFIP 80 PC meeting.