@article {27505,
	title = {Detecting unstable periodic orbits of chaotic dynamical systems},
	journal = {PHYSICAL REVIEW LETTERS},
	volume = {78},
	year = {1997},
	month = {1997},
	pages = {4733 - 4736},
	isbn = {0031-9007},
	author = {Schmelcher, P. and Diakonos, F. K.}
}
