AAPG Kinji Magara, "The Significance of Expulsion of Water in Oil - Phase Primary Migration", March 1976, Box: 55, Folder: 29. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/150641 Accessed June 22, 2025.