TY - JOUR AU - Kato, Akio TI - Union of Realcompact Spaces and Lindelöf Spaces JO - Canadian journal of mathematics PY - 1979 SP - 1247 EP - 1268 VL - 31 IS - 6 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1979-104-8/ DO - 10.4153/CJM-1979-104-8 ID - 10_4153_CJM_1979_104_8 ER -