Sílvia D. Olabarriaga Arnold W. M. Smeulders A. C. A. Marijnissen Koen L. Vincken An Intelligent Interactive Segmentation Method for the Joint Space in Osteoarthritic Ankles. 394-399 1999 conf/ipmi/1999 IPMI http://dx.doi.org/10.1007/3-540-48714-X_35 db/conf/ipmi/ipmi1999.html#OlabarriagaSMV99