The New Testament in Greek IV -- The Gospel According to St. John. Edited by the American and British Committees of the International Greek New Testament Project Volume Two the Majuscules

Ulrich B. Schmid, Dr. theol. (1995), Dr. theol. habil. (2002), is Research Fellow at the University of Birmingham (UK) and Lecturer at the Kirchliche Hochschule Wuppertal/Bethel (Germany). He has published on New Testament texts and traditions from Patristic and Medieval Periods (Marcion, Diatessaron).
Bill Elliott, Honorary Research Fellow in Birmingham University, from where PhD was allotted in 1974.
David Parker is Edward Cadbury Professor of Theology and a Director of the Institute for Textual Scholarship and Electronic Editing at the University of Birmingham, UK. He has published extensively on New testament textual criticism.