TY  - BOOK
AU  - Ditkin, V A
AU  - Sneddon I N  [series editor]
AU  - Ulam, S  [series editor]
AU  - Wishart, D M G  [translator]
TI  - Operational calculus in two variables and its applications
U1  - 517.32 
PY  - 1962///
CY  - London
PB  - Pergamon press
KW  - Operational calculus
ER  -