2 matching record(s)

file D (Stack)Muursepp, P. V.

"Erinnerungen der Zeitgenossen an Bernhard Schmidt"

offprint from Die Sterne, heft 11-12, 1968.

[1969-117]

1968

D Muursepp, P. V.

"Astronom ..."

offprint from Actes du XIe Congres International d'Histoire des Sciences, 1967.

[1969-116]

1967