Portable image-manipulation software: What is the extra development cost? - Yves Ligier; Osman Ratib; Matthieu Funk; René Perrier; Christian Girard; Marianne Logean (J. Digit. Imaging, 1992)

A hospital-wide distributed PACS based on Intranet. - David Bandon; Yves Ligier; Gerhard Trayser; Christian Girard; Marianne Logean; Osman Ratib (MedInfo, 1998)