Ocáriz, Fernando, “Vocation to Opus Dei as a vocation in the Church”, en Rodríguez, Pedro - en Ocáriz, Fernando - en Illanes Maestre, José Luis (eds.), Opus Dei in the Church: an ecclesiological study of the life and apostolate of Opus Dei, Dublin - Princeton, Four Courts - Scepter Publishers, 1994,  pp. 77-120.