TY - JOUR AU - Mehlhos, St. TI - Simple counter examples for the unsolvability of the Fermat- and Steiner-Weber-problem by compass and ruler. JO - Beiträge zur Algebra und Geometrie PY - 2000 SP - 151 VL - 41 IS - 1 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/item/BAG_2000__41_1_228294/ LA - en ID - BAG_2000__41_1_228294 ER -