TY - JOUR AU - Miljan Knežević AU - Dragana Savić TI - Some remarks on Ptolemy's theorem and its applications JO - The Teaching of Mathematics PY - 2020 SP - 57 VL - XXIII IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM2_2020_XXIII_1_a6/ LA - en ID - TM2_2020_XXIII_1_a6 ER -