%0 Journal Article %T Summaries of Papers Appearing in this Issue %J Applications of Mathematics %D 1968 %P 441 %V 13 %N 6 %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1968.103193/ %R 10.21136/AM.1968.103193 %G en %F 10_21136_AM_1968_103193