1
by Ferrari D’Occhieppo, Konradin, Firneis, Friedrich, Tschasnuter, Werner
Published 1969
Springer Berlin Heidelberg
Subjects: '; ...Astronomy, Astrophysics and Cosmology...

2
by Ferrari D’Occhieppo, Konradin, Göbel, Ernst
Published 1970
Springer Berlin Heidelberg
Subjects: '; ...Astronomy, Astrophysics and Cosmology...