TY  - BOOK
AU  - Rohlfs,K.
TI  - Lectures on density wave theory
SN  - 3540084487 :
U1  - 530.082 
PY  - 1977///
CY  - Berlin
PB  - Springer-Verlag
KW  - Density wave theory
KW  - Galaxies
N1  - Includes bibliographical references and index
ER  -