1. Albertini, A. v.: Histologische Geschwulstdiagnostik. Stuttgart: G. Thieme 1955.
2. Brody, I.: The ultrastructure of the tonofibrils in the keratinization process of normal human epidermis. J. Ultrastruct. Res.4, 264?297 (1960).
3. Burdick, C. O., Warner, P. O.: Simultaneous vulvar Bowen's disease and Paget's disease. Report of a case. Obstat. and Gynec.23, 396?400 (1964).
4. Califano, A., Caputo, R.: La microscopia elettrica nello studio delle precancerosi epitheliali cutanee. Minerva derm.43, 568?616 (1968).
5. Caputo, R., Califano, A.: Ultrastructural features of extramammary Paget's disease. Arch. klin. exp. Derm.236, 121?132 (1970).