TY - JOUR AU - Andrea Cianchi AU - Vladimir G. Maz'ya TI - Gradient regularity via rearrangements for $p$-Laplacian type elliptic boundary value problems JO - Journal of the European Mathematical Society PY - 2014 SP - 571 EP - 595 VL - 16 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4171/jems/440/ DO - 10.4171/jems/440 ID - JEMS_2014_16_3_a3 ER -