TY - JOUR AU - Worrell, J.M. jr. TI - Upper semicontinuous decompositions of spaces having bases of countable order JO - Portugaliae mathematica PY - 1967 SP - 493 EP - 504 VL - 26 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PORMA_1967__26_4_115053/ LA - en ID - PORMA_1967__26_4_115053 ER -