@article{CRMATH_2002__334_8_661_0, author = {Petar Popivanov and Nickolai Kutev}, title = {Viscosity solutions to the degenerate oblique derivative problem for fully nonlinear elliptic equations}, journal = {Comptes Rendus. Math\'ematique}, pages = {661--666}, publisher = {Elsevier}, volume = {334}, number = {8}, year = {2002}, doi = {10.1016/S1631-073X(02)02321-X}, language = {en}, }