Gustafson, Karl E.
Introduction to partial differential equations and hilbert space methods
John Wiley & Sons, 1980
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Ames, William F.
Numerical methods for partial differential equations
Academic Press, 1977
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John, Fritz
Partial differential equations
Springer, 1982
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Petrovsky, I. G. (Ivan Georgievich)
Lectures on partial differential equations
Dover, 1991
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Vichnevetsky, Robert
Computer methods for partial differential equations
Prentice-Hall, 1981
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