Timothy Ware
Sergius Bulgakov
John Meyendorff
Abbe Guettee
Archmandrite Serafim
Emilianos Timiadis
Stephen de Young
IV Ignatius
Jack N. Sparks
Michel Quenot
Dimitry Pospielovsky
Nicholas Zernov,Nicholas Zernou
Nicolas Zernov
Mary P. Hallick
John Behr
Leonid Ouspensky
Leonid Uspensky
Alexander Bogolepov
Georges Florovsky