Hackbusch, W. (1992). Elliptic differential equations: Theory and numerical treatment. Springer-Verlag.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHackbusch, Wolfgang. Elliptic Differential Equations: Theory and Numerical Treatment. Berlin ; New York: Springer-Verlag, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHackbusch, Wolfgang. Elliptic Differential Equations: Theory and Numerical Treatment. Springer-Verlag, 1992.
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