Letter The author thanks for the letter of February 3 and asks to return the text of his key-note speech to make it clear to republish in Springer Proceedings on P&MC. (Handwritten and typewritten variants) Date: 01.03.1988 Original document language: Russian, English Authors: Andrei Petrovich Ershov Organizations: Hitachi Ltd. Persons: Dines Bjorner Addressee: Yoshihiko Futamura
