TY - JOUR AU - C. Neugebauer TI - Smoothness and differentiability in $L_{p}$ JO - Studia Mathematica PY - 1964 SP - 81 EP - 91 VL - 25 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-25-1-81-91/ DO - 10.4064/sm-25-1-81-91 LA - en ID - 10_4064_sm_25_1_81_91 ER -