%0 Journal Article %T Recense %J Applications of Mathematics %D 1971 %P 384-390 %V 16 %N 5 %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1971.103369/ %R 10.21136/AM.1971.103369 %G cs %F 10_21136_AM_1971_103369