@article {1340273,
	title = {Using Three-Dimensional Microfluidic Networks for Solving Computationally Hard Problems},
	journal = {Proc. Nat. Acad. Sci. USA},
	volume = {98},
	year = {2001},
	note = {724},
	pages = {2961-2966},
	author = {Chiu, D. T. and Pezzoli, E. and Wu, H. and Stroock, A. D. and Whitesides, G. M.}
}
