%0 Journal Article %T Zprávy. Akademik Jan Smetana %J Applications of Mathematics %D 1963 %P 75-80 %V 8 %N 1 %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1963.102840/ %R 10.21136/AM.1963.102840 %G cs %F 10_21136_AM_1963_102840