Hackbusch, W. (1992). Elliptic differential equations: Theory and numerical treatment. Springer-Verlag.
Lua i Stíl Chicago (17ú heag.)Hackbusch, Wolfgang. Elliptic Differential Equations: Theory and Numerical Treatment. Berlin ; New York: Springer-Verlag, 1992.
Lua MLA (8ú heag.)Hackbusch, Wolfgang. Elliptic Differential Equations: Theory and Numerical Treatment. Springer-Verlag, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.