Joachim M. Gloger Boris Pasternak Rainer Sprengel G. Gabrielides Nailja Luth M. Timmermann An Al-Aided System for the Conversion of Paper-Based Technical Drawings into a CAD Format. 299-302 1992 MVA http://b2.cvl.iis.u-tokyo.ac.jp/mva/proceedings/CommemorativeDVD/1992/papers/1992299.pdf conf/mva/1992 db/conf/mva/mva1992.html#GlogerPSGLT92