@article{CRMATH_2010__348_19-20_1099_0, author = {Mark A. Peletier and Marco Veneroni}, title = {Non-oriented solutions of the eikonal equation}, journal = {Comptes Rendus. Math\'ematique}, pages = {1099--1101}, publisher = {Elsevier}, volume = {348}, number = {19-20}, year = {2010}, doi = {10.1016/j.crma.2010.09.011}, language = {en}, }