TY - JOUR AU - I. Dimovski AU - V. Hristov TI - Commutants of the Square of Differentiation on the Half-Line JO - Mathematica balkanica PY - 2012 SP - 79 VL - 26 IS - 1-2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MABA_2012_26_1-2_a7/ ID - MABA_2012_26_1-2_a7 ER -