Diogo Ricardo da Costa Diego F. M. Oliveira Edson Denis Leonel Dynamical and statistical properties of a rotating oval billiard. 1926-1934 2014 19 Commun. Nonlinear Sci. Numer. Simul. 6 https://doi.org/10.1016/j.cnsns.2013.10.007 https://www.wikidata.org/entity/Q58840640 db/journals/cnsns/cnsns19.html#CostaOL14