Vb̲̲us, Arthur..
History of asceticism in the Syrian orient : a contribution to the history of culture in the Near East. Volume I.. The origin of asceticism early monasticism in Persia. /

. - Louvain  : Secrťariat du CorpusSCO,  1958 
. - XXXVIII, 342 p.  26 cm. 
 - (Corpus scriptorum christianorum orientalium ; v. 184 )