TY - JOUR AU - E. D. Kulanin TI - On Four Circles for Four Points of a Triangle and on Two Circles for Eight Points of a Rectangular Triangle JO - Matematičeskoe obrazovanie PY - 2006 SP - 20 EP - 26 VL - 39 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MO_2006_39_4_a2/ LA - ru ID - MO_2006_39_4_a2 ER -