@article{GDZPPN002097737,
title = {Rigidity and Energy.},
journal = {Inventiones mathematicae},
volume = {69},
year = {1982},
pages = {11-34},
zbl = {0485.52001},
url = {http://dml.mathdoc.fr/item/GDZPPN002097737}
}
Connelly, Robert. Rigidity and Energy.. Inventiones mathematicae, Tome 69 (1982) pp. 11-34. http://gdmltest.u-ga.fr/item/GDZPPN002097737/