@article {8611,
	title = {Observation of Microwave-Induced Zero-Conductance State in Corbino Rings of a Two-Dimensional Electron System},
	journal = {Physical Review Letters},
	year = {2003},
	pages = {968031-968034},
	author = {C.L. Yang and M.A. Zudov and T.A. Knuuttila and R.R. Du and L.N. Pfeiffer and K.W. West}
}
