Shimon Gibson, “The Pool of Bethesda in Jerusalem and Jewish Purification Practices of the Second Temple Period” Proche-Orient-Chrétien 55 (2005), pp. 270–293. I, too, have written about the pool in “The Gospel of John and Archaeology” in James Charlesworth, ed., Jesus and Archaeology (Grand Rapids: Eerdmans, 2006), pp. 523–586, and later in “The Pool(s) of Bethesda and the Healing in John 5: A Reappraisal of Research and of the Johannine Text,” Revue Biblique 116, no. 1 (2009), pp. 111–136.