A discontinuous Galerkin method to solve Liouville’s equation of geometrical opticsRobert A.M. van Gestel, Martijn J.H. Anthonissen, Jan H.M. ten Thije Boonkkamp and Wilbert L. IJzermanEPJ Web Conf., 266 (2022) 02005DOI: https://doi.org/10.1051/epjconf/202226602005