Introduction to the operational calculus. vol. II Einführung in die Operatorenrechnung. English Berg, Lothar. Calculus, Operational. QA432 .B453 517.7 BEI Translation of Einführung in die Operatorenrechnung. Bibliography: p. 283-289. Amsterdam, North-Holland Pub. Co.; New York, J. Wiley, 1967. 1967. 1967 Text x, 294 p. ; eng engger North-Holland series on applied mathematics and mechanics, v. 2 North-Holland series in applied mathematics and mechanics ; v. 2.