TY - JOUR AU - Mináč, Ján TI - The covering of rings by valuation rings JO - Mathematica slovaca PY - 1982 SP - 121 EP - 126 VL - 32 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MASLO_1982__32_2_a2/ LA - en ID - MASLO_1982__32_2_a2 ER -