"Rate of Sperm Travel and Time of Ovulation in Sheep" by Schott, Ralph G. and Phillips, Ralph W, 1941

"Rate of Sperm Travel and Time of Ovulation in Sheep" by Schott, Ralph G. and Phillips, Ralph W, 1941, Box: 4, Folder: 31. Personal papers of John "Jack" A. Weir, PP 404. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/261367 Accessed December 25, 2025.