J. Chabassier and S. Imperiale, Introduction and study of fourth order theta schemes for linear wave equations, Journal of Computational and Applied Mathematics, vol.245, pp.194-212, 2012.
DOI : 10.1016/j.cam.2012.12.023
URL : https://hal.archives-ouvertes.fr/hal-01051803

J. Diaz and M. Grote, Energy Conserving Explicit Local Time Stepping for Second-Order Wave Equations, SIAM Journal on Scientific Computing, vol.31, issue.3, pp.1985-2014, 2009.
DOI : 10.1137/070709414
URL : https://hal.archives-ouvertes.fr/inria-00193160

S. Descombes, S. Lanteri, and L. Moya, Locally implicit time integration strategies in a discontinuous Galerkin method for Maxwell's equations Inria Research Report, pp.7983-7984