Multi-objective optimization in radiotherapy: applications to stereotactic radiosurgery and prostate brachytherapy. - Yan Yu; J. B. Zhang; Gang Cheng; M. C. Schell; Paul Okunieff (Artif. Intell. Medicine, 2000)

Level-set segmentation of pulmonary nodules in radiographs using a CT prior. - Jay S. Schildkraut; Shoupu Chen; Michael Heath; Walter O'Dell; Paul Okunieff; M. C. Schell; Narinder Paul (Image Processing, 2009)