Letter (hand-written)

Archive Correspondence Incoming foreign mail (1969)

Letter (hand-written)

Letter (hand-written)

Date:

22.06.1969

Authors:

Addresse:

Andrei Petrovich Ershov

People:

Alexei A. Lyapunov
Igor V. Pottosin
Michel A. Melkanoff
I. A. Vitkina