%0 Journal Article %T Recense %J Applications of Mathematics %D 1967 %P 486-489 %V 12 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1967.103128/ %R 10.21136/AM.1967.103128 %G cz %F 10_21136_AM_1967_103128