Engeli, M., and P. Lauechli: Automatic Calculation and Programming of Difference Equations for Elliptic Boundary Value Problems,

Popplewell, Cicely M. (1962) Popplewell, Cicely M. (Ed.) Information Processing 62, Proceedings of the 2nd IFIP Congress, Munich, Aug. 1962. North Holland Publ. Co., 1963.   Max Engeli

Languages mentioned ELLIPTIC {1962}