Hausherr, Irénée SJ.
Penthos : the doctrine of compunction in the Christian East /
translated by A. Hufstader, OSB 
. - Kalamazoo : Cistercian Publications, Inc.,  1982 
. - x, 200 p.  22 cm. 
 - (Cistercian studies series ; no. 53 )
<br/><label>  ISBN: </label>0-87907-853-7