TY  - BOOK
AU  - Burkhardt,G.
TI  - Astronomy and Astrophysics Abstracts/ed.by 
SN  - 3540543368
U1  - A1101A89f1792 
PY  - 1991///
CY  - Berlin
PB  - Springer Verlag
KW  - Astronomy-Astrophysics
KW  - Bibliography
N1  - Vol.52A 91991,721 p.); Literature 1990, Part 2
ER  -