Landolt-Börnstein. Numerical data and functional relationships in science and technology. New Series. Group_VI: Astronomy, astrophysics and space research. Volume_2: Astronomy and astrophysics. Extension and supplement to Volume_1. Subvolume_c: Interstellar matter - Galaxy - Universe.
Book published in 1982 by
K.-H. Hellwege,
K. Schaifers,
H. H. Voigt,
M. Grewing,
J. Trümper,
H. H. Fink,
H. Scheffler,
J. Schmid-Burgk,
W. Gliese,
R. Wielen,
B. F. Madore,
W. K. Huchtmeier,
P. Biermann,
H. Netzer 
,
K. J. Fricke
and other authors.
,
K. J. Fricke
and other authors.
