TY - JOUR AU - Drbohlav, Karel TI - A note on a problem of a ring covered by fields JO - Acta Universitatis Carolinae. Mathematica et Physica PY - 1962 SP - 23 EP - 24 VL - 3 IS - 1 UR - http://geodesic.mathdoc.fr/item/AUCMP_1962_3_1_a5/ LA - en ID - AUCMP_1962_3_1_a5 ER -