1. Squamous cell papillomas. Non epidermoid neoplasms;Michaels,1984
2. Benign neoplasms;Burkhardt,1988
3. Tumours of the larynx;Shaw,1979
4. Benign neoplasmas of the larynx;Jones;Otolaryngol Clin North Am,1984
5. Juvenile and adulte Kehlkopfpapillome;Kleinsasser;HNO,1973