Tu Hosiu patros hēmōn Isaak tu Syru ta sōzomena askētika metenechthenta eis tēn lalumenēn katharan hellēnikēn glōssan para tu hosiōtatu hierodidaskalu Kalliniku Pantokratorinu - Isaak Ninive, Bischof, Heiliger 640-700 (B. Rēgopulos, 1976)
In griech. Schr.