1. Fletcher CDM, Bridge JA, Hogendoorn P, Mertens F. WHO classification of tumours of soft tissue. WHO Classif Tumours Soft Tissue Bone Fourth Ed. 2013;46:10–2.
2. Singer S, Maki R, O’Sullivan B. Soft tissue sarcoma. In: DeVita Jr VT, Lawrence TS, Rosenberg SA, editors. Cancer: principles and practice of oncology. 9th ed. Philadelphi, PA: Lippincott Williams & Wilkins; 2011. p. 1533–77.
3. MacFarlane J. Clinical reports of the Surg Pract of the Glasgow Royal Infirmary. Glasgow: D. Robertson; 1832. p. 63–6.
4. Müller J. Erste Lieferung. Über den feineren Bau und die Formen der krankhaften Geschwülste. Berlin: G. Reimer; 1838. p. 60.
5. Singer S, Nielsen T, Antonescu C. Molecular biology of soft tissue sarcoma. In: DeVita V. T. Jr., Lawrence T. S. RSA, editor. Cancer: principles and practice of oncology. 9th ed. Philadelphia: Lippincott Williams & Wilkins; 2011. p. 1522–1532.