1. Rossi A. Angiomi e tumori vascolari benigni della cute L'Antologia Editrice, Naples, March 1988
2. Verrucous hemangioma;Imperial;Arch Dermatol,1967
3. Hemangioma verrucosum met osteoatrophie;Halter;Dermatol Z,1937
4. Ein fall von angioma keratosum;Bettmann;Mh Pract Derm,1909
5. Keratotic hemangiomas;Loria;Arch Dermatol,1958