TY - JOUR AU - Tadeusz Iwaniec TI - Projections onto gradient fields and $L^{p}$-estimates for degenerated elliptic operators JO - Studia Mathematica PY - 1982 SP - 293 EP - 312 VL - 75 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-75-3-293-312/ DO - 10.4064/sm-75-3-293-312 LA - en ID - 10_4064_sm_75_3_293_312 ER -