TY  - BOOK
AU  - Osterbrock,Donald E.
TI  - Walter Baade: a life in astrophysics 
SN  - 9780691049366 (hbk.) :
AV  - QB460.72.B22 
U1  - 523.1092 21
PY  - 2001///
CY  - Princeton, N.J., Chichester
PB  - Princeton University Press
KW  - Baade, Walter.
KW  - Astrophysicists
KW  - United States
KW  - Biography
KW  - eflch
N2  - This biography suggests that Walter Baade's greatest contribution to astrophysics was not his revision of Hubble's distance and age scales for the universe, but the discovery of two stellar populations: old and young stars
ER  -