Joseph Rife and William L. Potter (eds.), "The Ceiling Splay" in entry published June 28, 2023, https://caesarea-maritima.org/bibl/ZVBZQPUVRobert J.BullRobert S.FritziusThe Ceiling Splayhttps://caesarea-maritima.org/bibl/ZVBZQPUVhttps://www.zotero.org/groups/caesarea-maritima/items/ZVBZQPUVhttps://www.zotero.org/groups/2320447/items/ZVBZQPUVhttp://www.worldcat.org/oclc/981116783Robert J.BullThe Mithraeum at Caesarea MaritimaBoston, MAAmerican Schools of Oriental Research201761-682American Schools of Oriental Research Archaeological Reports25
  Bull, Robert J., and Robert S. Fritzius. “The Ceiling Splay.” In The Mithraeum at Caesarea Maritima, edited by Robert J. Bull, 2:61–68. American Schools of Oriental Research Archaeological Reports 25. Boston, MA: American Schools of Oriental Research, 2017.
Robert J. Bull and Robert S. Fritzius, The Ceiling Splay, in The Mithraeum at Caesarea Maritima, ed. Robert J. Bull, vol. 2, American Schools of Oriental Research Archaeological Reports 25 (Boston, MA: American Schools of Oriental Research, 2017), 61–68.