TY - BOOK T1 - The System of Astronomical Constants A1 - Kovalevsky, J. LA - French PP - Paris PB - Gauthier-Villars Editeur YR - 1965 UL - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/das.4695 OP - 330 NO - Proceedings of the 21st. Symposium of the International Astronomical Union held in Paris on 17-31 May, 1963 KW - Astronomía ER -