TY - JOUR AU - David Spring TI - On the regularity of solutions in Convex Integration theory. JO - Inventiones mathematicae PY - 1991 SP - 165 EP - 178 VL - 104 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1991__104_1_143878/ ID - IM_1991__104_1_143878 ER -