1
Farlow SJ. Partial differential equations for scientists and engineers. New York: : Dover Publications 1993.
2
Strauss WA. Partial differential equations: an introduction. 2nd ed. New York: : Wiley 2008.
3
Evans LC. Partial differential equations. 2nd ed. Providence, R.I.: : American Mathematical Society 2010.
4
John F. Partial differential equations. 4th ed. New York: : Springer-Verlag 1982.