Covering letter and Order

Archive School Informatics "Shkol'nitsa" system Correspondence apropos "Shkol'nitsa" system

Covering letter and Order

Covering letter and Order

Date:

26.12.1985

Authors:

S. K. Yurgens
V. I. Kovalenko

Addresse:

Andrei Petrovich Ershov

People:

L. V. Gorodniaia