%0 Journal Article %A Šťastný, Karel %T A note about premiums of disability benefits in connection with life insurance contract %J Aktuárské vědy %D 1938 %P 55-59 %V 7 %N 2 %U http://geodesic.mathdoc.fr/item/AV_1938_7_2_a1/ %G en %F AV_1938_7_2_a1