TY - JOUR AU - Pearl, Judea AU - Geiger, Dan AU - Verma, Thomas TI - Conditional independence and its representations JO - Kybernetika PY - 1989 SP - 33 EP - 44 VL - 25 IS - Suppl PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_1989__25_Suppl_a5/ LA - en ID - KYB_1989__25_Suppl_a5 ER -