Astronomy and astrophysics abstracts : Vol. 3, Literature 1970, pt. - 1 - Astronomisches Rechen-Institut, Heidelberg; International Astronomical Union (Berlin : Springer-Verlag, 1970)
Includes Index.
Keywords: Astronomy -- Abstracts -- Periodicals; Astrophysics -- Abstracts -- Periodicals; Astrophysics -- Bibliography -- Periodicals