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Remarks on the algebraic derivative in the operational calculus. Stud. Math. T. XIX. 1960.
MR 0117517 |
Zbl 0091.11401
[4] Yosida K.:
The Algebraic Derivative and Laplace’s Differential Equation. Proc. Japan. Acad. 59 ser A, 1983.
MR 0696889 |
Zbl 0524.34009