Precup, R. (2013). Linear and semilinear partial differential equations: An introduction. Radu Precup De Gruyter.
Lua i Stíl Chicago (17ú heag.)Precup, Radu. Linear and Semilinear Partial Differential Equations: An Introduction. Berlin: Radu Precup De Gruyter, 2013.
Lua MLA (9ú heag.)Precup, Radu. Linear and Semilinear Partial Differential Equations: An Introduction. Radu Precup De Gruyter, 2013.
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