%0 Journal Article %T Recense %J Applications of Mathematics %D 1961 %P 410-413 %V 06 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1961.102773/ %R 10.21136/AM.1961.102773 %G cz %F 10_21136_AM_1961_102773