TY - JOUR AU - Z. Ciesielski TI - A bounded orthonormal system of polygonals JO - Studia Mathematica PY - 1968 SP - 347 EP - 362 VL - 31 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-31-4-347-362/ DO - 10.4064/sm-31-4-347-362 LA - en ID - 10_4064_sm_31_4_347_362 ER -