1. Centennial Conference on Laryngeal Cancer, Toronto (1974) Workshop No. 2. Premalignant laryngeal lesions, carcinoma in situ, superficial carcinoma-definition and management. (Chairmen Miller AH, Batsakis JG). Can J Otolaryngol 3: 513–575
2. Delemarre JFM (1970) De betekenis van de plaveiselcellige hyperplasi van het larynexpitheel. Academisch proefschrift, Amsterdam
3. Hellquist H (1981) Dysplasia of the vocal cords. Linköping University Medical Dissertations, No. 105, Linköping
4. Hellquist H, Lundgren J, Olofsson J (1982) Hyperplasia, keratosis, dysplasia and carcinoma in situ of the vocal cords — a follow-up study. Clin Otolaryngol 7: 11–27
5. Kleinsasser O (1963a) Die Klassifikation und Differentialdiagnose der Epithelhyperplasien der Kehlkopfschleimhaut auf Grund histomorphologischer Merkmale. Z Laryngol Rhinol Otol 42: 339–362