TY  - GEN
AU  - Kopal,Zdenek
TI  - An application of the method of least squares to the adjustment of photometric elements of eclipsing binaries
AV  - SPE-B 06113 
PY  - 1943///
CY  - U.S.A.
PB  - American Philosophical Society
KW  - Eclipsing binaries
N1  - Harvard reprint series II-4
ER  -