@article {8626,
	title = {Bichromatic microwave photoresistance of a two-dimensional electron system},
	journal = {Physical Review Letters},
	year = {2006},
	doi = {10.1103/PhysRevLett.96.236804},
	author = {M.A. Zudov and R.R. Du and L.N. Pfeiffer and K.W. West}
}
