@article {9856,
	title = {Deep centers as atomic-size quantum dot electron turnstiles},
	journal = {Superlattices and Microstructures},
	year = {1994},
	pages = {399-401},
	doi = {10.1006/spmi.1994.1158},
	author = {Q. Niu and T. Wang and W.P. Kirk}
}
