- 1969, Working Papers in Linguistics (Department of Linguistics, University of Hawaiʻi), volume 1, parts 4–6, page 137
- Names for the more frequent diacritics are:
[ˇ] is hachek [ˈhoːˌčhɛk]; [˘], cradle; [ ̯], arc; [˜], tilde; [¯], macron; and [¨], dieresis or umlaut.
- 1981, Studies in Language Learning (Unit for Foreign Language Study and Research, University of Illinois at Urbana–Champaign), volume 3, page 146
- Circumflexes are used instead of hacheks on all but ǔ, which is traditionally written with a breve diacritic but is often seen with hachek, acute, or grave diacritics in many publications.
- 2002, Bernard H. Bichakjian, Language in a Darwinian Perspective (Bochum Publications in Evolutionary Cultural Semiotics: New Series, volume 3; Peter Lang →ISBN, 9780820454580), page 301
- Hachek or haček. Wedge-like diacritic mark [ˇ] placed primarily above consonants to indicate that the item is palatalized (Ex. č as in Engl. cheese, š Engl. shoe, and ž Fr. jour ‘day’).