TY  - BOOK
AU  - Carling Ellen B Ed.
AU  -  Kopal Zdenek Ed.
ED  - NATO advanced study institute on photometric and spectroscopic binary systems (1-14-, 19 : MARATEA ITALY)
TI  - Proceeding on Photometric and spectroscopic binary systems
T2  - NATO advanced study institute series: Mathematical and physical sciences; 69
U1  - B9:570j653p1,N80, M1 
PY  - 1991///
CY  - Holland
PB  - D Reidal        
ER  -