"The Many Faces of Sovereignty", 17th IVR World Congress, Challenges to Law at the End of the 20th Century, Bologna: CLUEB, v. IV, pp. 131-135, undated

"The Many Faces of Sovereignty", 17th IVR World Congress, Challenges to Law at the End of the 20th Century, Bologna: CLUEB, v. IV, pp. 131-135, undated, Box: 14, Folder: 58. Personal papers of Richard T. De George, PP 531. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/315464 Accessed March 04, 2026.