Pradeep, K., V. P. Kumar, D. Srikant, and G. Ashok. “Primary Meningeal Sarcoma (fibrosarcoma) of Cervical Spine in an 11 Yr Old Boy: An Extremely Rare Case Report”. Romanian Neurosurgery, vol. 31, no. 2, June 2017, pp. 203-6, https://journals.lapub.co.uk/index.php/roneurosurgery/article/view/994.