Zenger, C., & Gietl, H. (1977). Improved difference schemes for the Dirichlet problem of Poisson's equation in the neighbourhood of corners.
Chicago Style (17th ed.) CitationZenger, C., and Horst Gietl. Improved Difference Schemes for the Dirichlet Problem of Poisson's Equation in the Neighbourhood of Corners. München, 1977.
MLA (9th ed.) CitationZenger, C., and Horst Gietl. Improved Difference Schemes for the Dirichlet Problem of Poisson's Equation in the Neighbourhood of Corners. 1977.
Warning: These citations may not always be 100% accurate.