%0 Journal Article %A Kaufman, H. %T Operational Calculus in Two Variables and its Applications, by V. A. Ditkin and A. P. Prudnikov. Translated from the Russian by D. M. G. Wishart. Pergamon Press, New York, 1962. x + 167 pages. $8. 50. %J Canadian mathematical bulletin %D 1964 %P 147-147 %V 7 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0008439500026825/ %R 10.1017/S0008439500026825 %F 10_1017_S0008439500026825