Bernfeld, S. R., Lakshmikantham, V., Lakshmikantham, V. 1., & Lakshmikantham, V. (1974). An introduction to nonlinear boundary value problems. New York ; London: Academic Press.
Παραπομπή Chicago StyleBernfeld, Stephen R., V. Lakshmikantham, V. 1926- Lakshmikantham, and V. Lakshmikantham. An Introduction to Nonlinear Boundary Value Problems. New York ; London: Academic Press, 1974.
Παραπομπή MLABernfeld, Stephen R., V. Lakshmikantham, V. 1926- Lakshmikantham, and V. Lakshmikantham. An Introduction to Nonlinear Boundary Value Problems. New York ; London: Academic Press, 1974.
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