Hackbusch, W. (1992). Elliptic differential equations: Theory and numerical treatment. Springer-Verlag.
Čikaški stil citiranja (17. izdanje)Hackbusch, Wolfgang. Elliptic Differential Equations: Theory and Numerical Treatment. Berlin ; New York: Springer-Verlag, 1992.
MLA način citiranja (8. izdanje)Hackbusch, Wolfgang. Elliptic Differential Equations: Theory and Numerical Treatment. Springer-Verlag, 1992.
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