TY - JOUR AU - Müller, Vladimír TI - On the topological boundary of the one-sided spectrum JO - Czechoslovak Mathematical Journal PY - 1999 SP - 561 EP - 568 VL - 49 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMJ_1999__49_3_a8/ LA - en ID - CMJ_1999__49_3_a8 ER -