%0 Journal Article %T Summaries of Papers Appearing in this Issue %J Applications of Mathematics %D 1973 %V 18 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1973.103481/ %R 10.21136/AM.1973.103481 %G en %F 10_21136_AM_1973_103481