Woodard, Roger D. "The Ancient Languages of Asia Minor"Αρχειοθετήθηκε 2016-03-10 στο Wayback Machine.. Cambridge University Press, 2008, ISBN 052168496X, σ. 72, (Απόσπασμα:"Unquestionably, however, Phrygian is most closely linked with Greek", "Phrygian and Greek...belong, no doubt, to the same dialectal subgroup of early Indo-European").
Woodard, Roger D. "The Ancient Languages of Asia Minor"Αρχειοθετήθηκε 2016-03-10 στο Wayback Machine.. Cambridge University Press, 2008, ISBN 052168496X, σ. 72, (Απόσπασμα:"Unquestionably, however, Phrygian is most closely linked with Greek", "Phrygian and Greek...belong, no doubt, to the same dialectal subgroup of early Indo-European").