TY - JOUR AU - Plachky, Detlef TI - An ideal theoretic characterization of finite sets, finite algebras, and $\sigma$-algebras of countably generated type JO - Mathematica slovaca PY - 2001 SP - 301 EP - 311 VL - 51 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MASLO_2001__51_3_a6/ LA - en ID - MASLO_2001__51_3_a6 ER -