Covering letter for hotel reservation forms to be completed by the participants of the PC meeting. A form is attached.

"We will probably have difficulty in getting enough panellists. ... I will be writing to you with details of the next meeting in Amsterdam. Let Ria Lucas know the days for which you need accomodation."

Twenty papers are not yet received from Ershov. IFIP will take care of Ershov's hotel expenses in Amsterdam.

concerning two parcels with twenty Congress papers which have been sent to Amsterdam. The author asks also to confirm the covering by IFIP of his forthcoming stay in Amsterdam.

informing on the term of the third PC meeting.

Ershov is ready to visit the Mathematical Centrum (Amsterdam) and give there an informal talk. The letter contains also the resume of this talk.

to the panel organizers with request for information about potential panel participants.

"The expenses for your 10 day stay in Amsterdam will be covered by IFIP. ... Let us know the time of your arrival and departure."

"All papers in your area received. Expenses for your 10 days stay are covered by IFIP."

"I have scheduled your talk on March 5."

"Arriving Netherlands on Saturday (2nd of March) for ten days. Will be happy to pay visit."

"Arriving on Saturday (2nd of March)."

"May I telephone you (van Wingaarden) this Saturday from the hotel?"

on current affairs in Amsterdam and Moscow.

1) A leaf of the LOT company (Polish aialines). 2) Boarding card of KLM aircompany for a flight from Amsterdam to Moscow. 3) A thicket for a bioscope presentation. 4) A card of the "Jan Luyken" Hotel. 5)A visiting card of the "Aeroflot" station manager in the airport Schiphol. 6) A thicket to the Filmtheater "Cupido". 7) 2 thickets of local transport.

1) Checks from the "P.W.Akkerman" and "Kent-Modes" shops (Amsterdam). 2) A note with a working address of an employee of the USSR Ac. Sci. Department of International Relations. 3) Telephones list of USSR offices in the Netherlands. 4) A visiting card of the "Aeroflot" general manager for Netherlands.

The representation of "Aeroflot" in Poland apologizes for an error it has commited.

1) Request for a reservation for a table in a dining room of the Sonesta Hotel. 2) Ralway itenary Zandvoort-Maastricht. 3) "Aeroflot" thicket for a flight Moscow-Amsterdam-Moscow (1-10.03.1980).

from the PC meeting.

on a standard sheet of the Mathematical Center.