1. Tumors of Bone and Cartilage, series 2, fascicle 5;Spjut,1971
2. Fibrous histiocytomas of the oral mucosa;Hoffman;Oral Surg,1981
3. Histological typing of soft tissue tumours;Enzinger,1969
4. Atypical fibro-xanthoma of the skin;Fretzin;Cancer,1973
5. Benign and atypical fibrous histiocytoma;Dahlin,1978