@article{02074344, title = {Billiards: models with chaotic dynamics.}, journal = {Bolet\'\i n de la Asociaci\'on Matem\'atica Venezolana}, volume = {9}, year = {2002}, pages = {109-140}, zbl = {1060.37032}, language = {en}, url = {http://dml.mathdoc.fr/item/02074344} }
Markarian, Roberto. Billiards: models with chaotic dynamics.. Boletín de la Asociación Matemática Venezolana, Tome 9 (2002) pp. 109-140. http://gdmltest.u-ga.fr/item/02074344/