4

Sternschnuppenregen am 2. Januar 1908

Year:
1908
File:
PDF, 86 KB
1908
5

R Coronae borealis

Year:
1909
Language:
german
File:
PDF, 80 KB
german, 1909
6

Beobachtungen veränderlicher Sterne

Year:
1909
Language:
german
File:
PDF, 213 KB
german, 1909
7

Über ein Hauptminimum von 68 u Herculis

Year:
1909
File:
PDF, 87 KB
1909
8

Algol

Year:
1910
Language:
german
File:
PDF, 89 KB
german, 1910
11

Commission 27. (Variable Stars.)

Year:
1933
Language:
english
File:
PDF, 156 KB
english, 1933
12

Commission 27. (Variable Stars.)

Year:
1936
Language:
english
File:
PDF, 159 KB
english, 1936