Patrologia Graeca
PG 152: Manuel Calecas, Joannes Cyparissiotes, Emperor Matthew Kantakouzenos, Synodical and Patriarchical canons and legislations of various Patriarchs of Constantinople (Joannes Glycys (or Glycas), Isaias, Joannes Caleca, Isidorus, Callistus, Philotheus)