Teodor, G. V., M. C. Elena, G. E. Florina, and P. C. Aneta. “Contribution of Mental Training to the Improvement of Sports Performance”. New Trends and Issues Proceedings on Humanities and Social Sciences, vol. 2, no. 1, Feb. 2016, pp. 96-100, doi:10.18844/prosoc.v2i1.285.