RT Conference Proceedings T1 Variedades algebraicas totales A1 Abellanas Cebollero, Pedro YR 1965 FD 1965 LK https://hdl.handle.net/20.500.14352/65533 UL https://hdl.handle.net/20.500.14352/65533 LA spa DS Docta Complutense RD 8 abr 2025