@article{articleef59c125,
title   = {Differentiability with respect to delays for a retarded reaction-diffusion equation},
author = {Hale, J.K. and Ladeira, Luiz Augusto da Costa},
year = {1993},
doi = {10.1016/0362-546x(93)90069-5},
journal   = {Nonlinear Analysis}
}