@article{GDZPPN002236672,
title = {A Direct proof for lower semicontinuity of polyconvex functionals.},
journal = {Manuscripta mathematica},
volume = {86},
year = {1995},
pages = {35-50},
zbl = {0874.49015},
url = {http://dml.mathdoc.fr/item/GDZPPN002236672}
}
Fusco, Nicola; Hutchinson, John E. A Direct proof for lower semicontinuity of polyconvex functionals.. Manuscripta mathematica, Tome 86 (1995) pp. 35-50. http://gdmltest.u-ga.fr/item/GDZPPN002236672/