TY  - SER
AU  - Wattenberg,Diedrich
TI  - 1. Komet Bappu-Bok-Nawkirk (1949c): : Ephemeride Juli-September 1949
CY  - ARCHENHOLD-STERNWARTE Berlin-Treptow
PB  - Prof. Diedrich Wattenberg 
ER  -