1. Aboulafia, A.J., Rosenbaum, D.H., Sicard-Rosenbaum, L., Jelinek, J.S., Malawer, M.M. (1994): Treatment of large subchondral tumors of the knee with cryosurgery and composite reconstruction. Clin. Orthop. 307: 189–199
2. Adam, R., Akpinar, E., Johann, M. (1997): Place of Cryosurgery in the Treatment of Malignant Liver Tumors. An. Surg. 225(1): 39–50
3. Allington, H.V. (1950): Liquid nitrogen in the treatment of skin diseases. Calif. Med. 72: 153–155
4. Andersen, E.S., Thorup, K., Larsen, G. (1988): The results of cryosurgery for cervical intraepithelial neoplasia. Gynecol. Oncol. 30: 21–25
5. Arnott, J. (1850): Practical illustrations of the remedial efficacy of a very low or anaesthetic temperature. Lancet 2: 257–259