Pavel Ikonomov Hideaki Okamoto Fumiki Tanaka Takeshi Kishinami Inspection Method for Geometrical Tolerance Using Virtual Gauges. 550-555 1995 conf/icra/1995 ICRA db/conf/icra/icra1995-1.html#IkonomovOTK95 http://dx.doi.org/10.1109/ROBOT.1995.525341