TY - JOUR AU - Xhevat Z. Krasniqi TI - Integrability of Double Cosine Trigonometric Series with coefficients of bounded variation of second order JO - Commentationes Mathematicae PY - 2011 SP - 125 EP - 139 VL - 51 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/cm.v51i2.5315/ DO - 10.14708/cm.v51i2.5315 LA - pl ID - 10_14708_cm_v51i2_5315 ER -