@article{1077491421, author = {Reid, William T.}, title = {Isoperimetric problems of Bolza in non-parametric form}, journal = {Duke Math. J.}, volume = {5}, number = {1}, year = {1939}, pages = { 675-691}, language = {en}, url = {http://dml.mathdoc.fr/item/1077491421} }
Reid, William T. Isoperimetric problems of Bolza in non-parametric form. Duke Math. J., Tome 5 (1939) no. 1, pp. 675-691. http://gdmltest.u-ga.fr/item/1077491421/