TY - JOUR AU - Demirel, Oğuzhan TI - The theorems of Stewart and Steiner in the Poincaré disc model of hyperbolic geometry JO - Commentationes Mathematicae Universitatis Carolinae PY - 2009 SP - 359 EP - 371 VL - 50 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_2009__50_3_a3/ LA - en ID - CMUC_2009__50_3_a3 ER -