Contains the keyword Sufism

Toti, M. (2008).  The Hesychast method of prayer: its anthropological and symbolic significance.. International Journal for the Study of the Christian Church. 8, 17–32. Abstract
Izutsu, T. (2004).  Sufismo y taoísmo. Vol. 1: Ibn ʿArabī. 2a ed. Sufismo y taoísmo. Vol. 1: Ibn ʿArabī. 2a ed. 339.