expressing a wish of two graduate students to visit Novosibirsk Computing Center as students or as guests

to several European Universities and Institutions expressing the authors' wish to continue their education

and plans for future studies (enclosure to the letter by Henriksen and Laursen)

by Scandinavian Unions on research in modern methods of planing and control

by Lena Henriksen's thesis adviser Brian Mayoh

by K.K. Laursen's thesis adviser Kristen Nygaard