Letters The letter dated 1986 in which Polsh colleagues propose to publish programs and their listings as floppy disc records, and to use them in educational process.
Ershov's reply Date: 31.10.1986- 21.09.1987 Original document language: russian Authors: Jan Doszczontek, Piotr Gavlovicz Addressee: Andrei Petrovich Ershov
