%0 Journal Article %T Recense %J Applications of Mathematics %D 1956 %P 445-449 %V 01 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1956.102545/ %R 10.21136/AM.1956.102545 %G cz %F 10_21136_AM_1956_102545