Kron, R.G. books & textbook
The Deep Universe: Saas-Fee Advanced Course 23. Lecture Notes 1993. Swiss Society for Astrophysics and Astronomy
Sandage, A.R. R. Kron, R.G. Longair, M.S. Binggeli, Bruno Buser, Roland
Springer /2011-02-24 Paperback / 540 Pages
isbn-10: 3642082092 / isbn-13: 9783642082092
