Petryshyn, W. V. (1993). Approximation-solvability of nonlinear functional and differential equations. Dekker.
Chicago-Zitierstil (17. Ausg.)Petryshyn, Wolodymyr V. Approximation-solvability of Nonlinear Functional and Differential Equations. New York u.a: Dekker, 1993.
MLA-Zitierstil (9. Ausg.)Petryshyn, Wolodymyr V. Approximation-solvability of Nonlinear Functional and Differential Equations. Dekker, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.