Under the general agreement about an exchange of researchers between Swedish Universities and SO AN in Novosibirsk, the authors invite A.Ershov to visit Sweden during the early fall of 1971.

Under the agreement between Sweden and USSR Swedish side would like to invite, over and above quota of exchange, prof. A.Ershov. The Joint Committee of the Swedish Academies asks for the addressee's assistance in this matter.

Swedish side confirms that addressee's visit to Sweden will be arranged according to the agreement between Soviet and Swedish Academies.

The author thanks for the research reports and suggests to discuss a date of addressee's visit. Something like October 1 would be suitable for them.

The author suggests to the addressee to spend the first week after the IFIP conference in Lund and the next week in Stockholm.

It is a notification about TC-2 meetings, in particular, the eighteenth meeting of TC-2 is scheduled for 1974 August 2-3 in Lund, Sweden.

A.Ershov is invited to participate in and contribute to IFIP Working Conference on Command Languages in Lund, Sweden, on July 29 - August 2, 1974.

Director of Computer Center sends traveller's dossier of A.Ershov to Chairman of Siberian Branch of the USSR Ac. Sci.

of an advisability of A.Ershov's acceptance of Swedish Academy invitation to visit Sweden.

Justification of an advisability of A.Ershov's visit to Sweden is sent to Chief of Dept. of International Relations of the USSR Ac. Sci.

to A.Ershov for his scientific trip to Sweden.

of A.Ershov for scientific trip to Sweden.