TY - JOUR TI - Joint Third Congress of Czechoslovak Mathematicians and Seventh Congress of Polish Mathematicians JO - Aktuárské vědy PY - 1948 SP - 152 EP - 162 VL - 8 IS - 4 UR - http://geodesic.mathdoc.fr/item/AV_1948_8_4_a4/ LA - en ID - AV_1948_8_4_a4 ER -