%0 Journal Article %T Recense %J Applications of Mathematics %D 1967 %P 318-323 %V 12 %N 4 %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1967.103105/ %R 10.21136/AM.1967.103105 %G cs %F 10_21136_AM_1967_103105