Topological Maps for Visual Navigation. - José Santos-Victor; Raquel Frizera Vassallo; Hans J. Schneebeli (ICVS, 1999)

Visual servoing and appearance for navigation. - Raquel Frizera Vassallo; Hans J. Schneebeli; José Santos-Victor (Robotics Auton. Syst., 2000)

Using motor representations for topological mapping and navigation. - Raquel Frizera Vassallo; José Santos-Victor; Hans J. Schneebeli (IROS, 2002)