. "NATURAL METRICS AND BOUNDEDNESS OF SUPERPOSITION OPERATOR ACTING BETWEEN B*α AND F*(p, q, s) Vol. 3(1) Jan 2015, No. 20, pp. 195-203 A. EL-SAYED AHMED, A. KAMAL, T.I. YASSEN", Electronic Journal of Mathematical Analysis and Applications, 3, 1, 2015, -. doi: 10.21608/ejmaa.2015.310710