TY - JOUR AU - Kaufman, H. TI - 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. JO - Canadian mathematical bulletin PY - 1964 SP - 147 EP - 147 VL - 7 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500026825/ DO - 10.1017/S0008439500026825 ID - 10_1017_S0008439500026825 ER -