Traffic sign detection for U.S. roads: Remaining challenges and a case for tracking. - Andreas Møgelmose; Dongran Liu; Mohan M. Trivedi (ITSC, 2014)

Detection of U.S. Traffic Signs. - Andreas Møgelmose; Dongran Liu; Mohan Manubhai Trivedi (IEEE Trans. Intell. Transp. Syst., 2015)