@article{GDZPPN002238101,
title = {On approximate differentiability of functions with bounded deformation.},
journal = {Manuscripta mathematica},
volume = {91},
year = {1996},
pages = {61-72},
zbl = {0868.46024},
url = {http://dml.mathdoc.fr/item/GDZPPN002238101}
}
Hajlasz, Piotr. On approximate differentiability of functions with bounded deformation.. Manuscripta mathematica, Tome 91 (1996) pp. 61-72. http://gdmltest.u-ga.fr/item/GDZPPN002238101/