T. A. Alvegård, N. O. Berg, J. Ranstam, A. Rydholm, and B. Rööser, “Prognosis in high-grade soft tissue sarcomas of Scandinavian Sarcoma Group experience in a randomized adjuvant chemotherapy trial”, ActaO, vol. 60, no. 5, pp. 517–521, Jan. 1989.