Johnson, William:Bookrolls and scribes in Oxyrhynchus, s. 343. (Esimerkkejä myös sivuilla 259, 315 ja 334)University of Toronto Press, 2004.ISBN0802037348Teoksen verkkoversio.
The Curse of the Diaeresis26.4.2012.The New Yorker.”The special tool we use here at The New Yorker for punching out the two dots that we then center carefully over the second vowel in such words as “naïve” and “Laocoön” will be getting a workout this year, as the Democrats coöperate to reëlect the President.”