TY - JOUR AU - Delgado Pérez, Juan Ramón PY - 1987 UR - https://hdl.handle.net/20.500.14352/87585 T2 - Extracta Mathematicae LA - eng M2 - 53 PB - Universidad de Extremadura KW - Cubic and quartic equations TI - Ramification and units of the cubic number field Q (zeta) generated by a root of X3+abX+b=0 TY - journal article VL - 2 ER -