@article{01780539,
title = {A frictionless contact problem for viscoelastic materials.},
journal = {Journal of Applied Mathematics},
volume = {2},
year = {2002},
pages = {1-21},
doi = {10.1155/S1110757X02000219},
zbl = {1035.74040},
language = {en},
url = {http://dml.mathdoc.fr/item/01780539}
}
Barboteu, Mikäel; Han, Weimin; Sofonea, Mircea. A frictionless contact problem for viscoelastic materials.. Journal of Applied Mathematics, Tome 2 (2002) pp. 1-21. doi : 10.1155/S1110757X02000219. http://gdmltest.u-ga.fr/item/01780539/