@article{Sankaranarayanan2007,
	title = {Dynamical echo in two-state quantum systems},
	author = {R. Sankaranarayanan and Jane H. Sheeba and M. Lakshmanan},
	journal = {Chaos, Solitons \& Fractals},
	month = {Aug},
	number = {5},
	pages = {1618--1624},
	url = {http://www.sciencedirect.com/science/article/B6TJ4-4K07FMX-1/1/97d8482b254632f125a00c35a8cdb4dd},
	volume = {33},
	year = {2007},
	biburl = {http://www.bibsonomy.org/bibtex/23954ac12848eeedb5f103d44a53927a6/smicha},
	description = {Chaos, Solitons & Fractals},
	keywords = {imported }
}