TY  - BOOK
AU  - Becker,W.
AU  - Contopoulos,George
ED  - International Astronomical Union. Symposium
ED  - International Astronomical Union
TI  - The spiral structure of our galaxy: International Astronomical Union Symposium No. 38 held in Basel, Switzerland, August 29-September 4, 1969 
PY  - 1970///
CY  - Dordrecht, Holland
PB  - D. Reidel Publ. Co.
KW  - Milky Way
KW  - Congresses
KW  - Spiral galaxies
ER  -