@article {27447,
	title = {Fermi acceleration in the randomized driven Lorentz gas and the Fermi-Ulam model},
	journal = {PHYSICAL REVIEW E},
	volume = {76},
	year = {2007},
	month = {2007},
	isbn = {1539-37551550-2376},
	author = {Karlis, A. K. and Papachristou, P. K. and Diakonos, F. K. and Constantoudis, V. and Schmelcher, P.}
}
