P. Chaudhary, N. Karn, B. Shrestha, G. Khanal, and R. Maharjan, “Extra-skeletal (periosteal Ewing’s sarcoma) Ewing’s sarcoma of distal femur of right leg in a 10 year old boy - A case report”, Health Renaissance, vol. 9, no. 1, pp. 50–53, Mar. 2011.