Beobachttungs-Zirculare der Astronomischen Nachrichten.Hrsg. von prof.Dr.H.
Kobold. Kiel.Verlag der Astronomische Nachrichten.

1925  Jahrg. 7,  N 1-43  ,45,46,  ,48
1926   "     8,  " 1-6  ,8, ,10-12,  ,  ,15-25,  ,27-45
1927   "     9   " 1-43
1928   "    10   " 1-48
1929   "    11   " 1-47
1930   "    12   " 1-24 ............30-48
1931   "    13   " 1-42 ......9-14,  ,16-23,  ,25-33,  ,  ,36-42
1932   "    14   " 
1933   "    15   " 
1934   "    16   " 2-19,  ,21-39,  ,41-42
1935   "    17
1936   "    18
1937   "    19   N 1-48