TY - JOUR AU - Radu Paltanea AU - Gabriel Stan TI - Transfomation of the second order modulus by positive linear operators JO - Analele Universităţii "Ovidius" Constanţa Seria Matematică PY - 2015 VL - XXIII IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ASUO_2015_XXIII_1_a21/ ID - ASUO_2015_XXIII_1_a21 ER -