↑Liddell, Henry George & Scott, Robert:προσοδιακόςA Greek-English Lexicon.1940.Oxford:Clarendon Press / Perseus Digital Library, Tufts University.(englanniksi)
↑Ladd, D. Robert:Simultaneous Structure in Phonology, s. 59. (EBSCO ebook academic collection. Oxford Linguistics)OUP Oxford, 2014.ISBN0191650137Teoksen verkkoversio.