@article{1102723676, author = {Silverman, Edward}, title = {Basic calculus of variations.}, journal = {Pacific J. Math.}, volume = {109}, number = {2}, year = {1983}, pages = { 471-482}, language = {en}, url = {http://dml.mathdoc.fr/item/1102723676} }
Silverman, Edward. Basic calculus of variations.. Pacific J. Math., Tome 109 (1983) no. 2, pp. 471-482. http://gdmltest.u-ga.fr/item/1102723676/