Boundary Problems for Differential Equations with Deviating Arguments. (Short Communication). L.J. Grimm; K. Schmitt — 1969 Aequationes mathematicae
Boundary Value Problems for Differential Equations with Deviating Arguments. L.J. Grimm; K. Schmitt — 1970 Aequationes mathematicae
Nonlinear elliptic boundary value problems versus their finite difference approximations: numerically irrelevant solutions. K. Schmitt; H.O. Peitgen; D. Saupe — 1981 Journal für die reine und angewandte Mathematik
A multidimensional analogue of the Denjoy-Perron-Henstock-Kurzweil integral. Ang, D.D.; Schmitt, K.; Le, Vy Khoi — 1997 Bulletin of the Belgian Mathematical Society - Simon Stevin