Reifenberg, Hermann (1968): Jounel, Pierre, La Concelebration de la Messe- La Communion saus les deux: Paris, 1966. -  Jounel, Pierre, The Rite of Concelebration of Mass and of Communion under both species. History: Texts in English and Commentaries, New York, 1967, in: Liturgisches Jahrbuch : LJ, Münster, Westf.: Aschendorff, Jg. 18, S. 127.