TY - JOUR AU - A. Peyerimhoff AU - W. Kratz AU - W. Jurkat TI - On Best Two-Dimensional Dirichlet-Approximations and their Algorithmic Calculation. JO - Mathematische Annalen PY - 1979 SP - 1 EP - 32 VL - 244 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MAN_1979__244_163288/ ID - MAN_1979__244_163288 ER -