1 matching record(s)
file D (Stack)Mann, Georg; Sonnefeld, August
"70 Years Astronomical Instruments Department Part I: 1897 to 1946"
in Jena Review, 1967/3, pp. 159-170.
[Unknown]
1967
1 matching record(s)
file D (Stack)Mann, Georg; Sonnefeld, August
"70 Years Astronomical Instruments Department Part I: 1897 to 1946"
in Jena Review, 1967/3, pp. 159-170.
[Unknown]
1967