Gerlach 2012, p. 77. Gerlach, Oliver (2012). «About the Import of the Byzantine Intonation Aianeoeane in an 11th Century Tonary». In: Altripp, Michael. Studies in Byzantine History and Civilization (em inglês). 2. Turnhout: Brepols. pp. 172–83. ISBN978-2-503-54153-2. doi:10.1484/M.SBHC_EB.1.100945