@article {27430,
	title = {Phase-space composition of driven elliptical billiards and its impact on Fermi acceleration},
	journal = {PHYSICAL REVIEW E},
	volume = {82},
	year = {2010},
	month = {2010},
	isbn = {1539-37551550-2376},
	author = {Lenz, F. and Petri, C. and Diakonos, F. K. and Schmelcher, P.}
}
