%0 Journal Article %A Li Lu %A Murtazo Nazarov %A Paul Fischer %T Nonlinear artificial viscosity for spectral element methods %J Comptes Rendus. Mathématique %D 2019 %P 646-654 %V 357 %N 7 %I Elsevier %R 10.1016/j.crma.2019.07.006 %G en %F CRMATH_2019__357_7_646_0