TY - JOUR AU - David Shreve TI - Approximation of commutators of singular integrals JO - Studia Mathematica PY - 1976 SP - 1 EP - 20 VL - 56 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-56-1-1-20/ DO - 10.4064/sm-56-1-1-20 LA - en ID - 10_4064_sm_56_1_1_20 ER -