TY - JOUR AU - Leszek Olszowy TI - On existence of solutions of a quadratic Urysohn integral equation on an unbounded interval JO - Commentationes Mathematicae PY - 2008 SP - 103 EP - 112 VL - 48 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/cm.v48i1.5264/ DO - 10.14708/cm.v48i1.5264 LA - pl ID - 10_14708_cm_v48i1_5264 ER -