@article{1102978710, author = {Squier, D. P.}, title = {Elliptic differential equations with discontinuous coefficients.}, journal = {Pacific J. Math.}, volume = {31}, number = {3}, year = {1969}, pages = { 247-254}, language = {en}, url = {http://dml.mathdoc.fr/item/1102978710} }
Squier, D. P. Elliptic differential equations with discontinuous coefficients.. Pacific J. Math., Tome 31 (1969) no. 3, pp. 247-254. http://gdmltest.u-ga.fr/item/1102978710/