1. The Germanic diphthongs ∗ai and ∗au in Old Frisian and Old English and the origin of the Old English (West Saxon) digraph IE;Armborst;Studia Anglica Posnaniensia,1977
2. An Anglo-Saxon dictionary;Bosworth,1898
3. Old English grammar;Campbell,1959
4. Compensatory lengthening;Chene;Language,1979
5. ‘Vocalisation’ as nucleation;Colman;Studia Linguistica,1983