1

Note on the diameters of photovisual star images

Year:
1956
Language:
english
File:
PDF, 108 KB
english, 1956
2

Zur Bestimmung der photographischen Sterngröße

Year:
1907
Language:
german
File:
PDF, 427 KB
german, 1907
4

Mikrometermessungen von Doppelsternen

Year:
1909
File:
PDF, 240 KB
1909
5

Photographische Beobachtungen von S Sagittae

Year:
1909
Language:
german
File:
PDF, 630 KB
german, 1909
7

ON COLLABORATION IN ASTRONOMY

Year:
1937
Language:
english
File:
PDF, 553 KB
english, 1937