TY  - BOOK
T1  - Proceedings of the international meeting on problems of astrometry and celestial mechanics
PP  - La Plata
PB  - Observatorio Astronómico
YR  - 1961
UL  - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/dun.176562
ER  -