Söderholm, T. (1970). The end-rhymes of Marvell, Cowley, Crashaw, Lovelace and Vaughan: A study of their reflection of the pronunciation of stressed vowels and diphthongs in the mid-seventeenth century. Åbo Akademi.

Söderholm, Torbjörn. The End-rhymes of Marvell, Cowley, Crashaw, Lovelace and Vaughan: A Study of Their Reflection of the Pronunciation of Stressed Vowels and Diphthongs in the Mid-seventeenth Century. Åbo: Åbo Akademi, 1970.

Söderholm, Torbjörn. The End-rhymes of Marvell, Cowley, Crashaw, Lovelace and Vaughan: A Study of Their Reflection of the Pronunciation of Stressed Vowels and Diphthongs in the Mid-seventeenth Century. Åbo Akademi, 1970.