%0 Journal Article %T Joint Third Congress of Czechoslovak Mathematicians and Seventh Congress of Polish Mathematicians %J Aktuárské vědy %D 1948 %P 152-162 %V 08 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/AV_1948__8_4_a4/ %G en %F AV_1948__8_4_a4