@article{M2AN_2020__54_2_705_0,
     author = {Liu, Yong and Shu, Chi-Wang and Zhang, Mengping},
     title = {Optimal error estimates of the semidiscrete discontinuous {Galerkin} methods for two dimensional hyperbolic equations on {Cartesian} meshes using $P^k$ elements},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {705--726},
     publisher = {EDP-Sciences},
     volume = {54},
     number = {2},
     year = {2020},
     doi = {10.1051/m2an/2019080},
     mrnumber = {4076058},
     zbl = {1439.65115},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/m2an/2019080/}
}