Wang, Zhigang     Comparative Analysis of Electromyographic Signals (SEMG) in Knee Flexor and Extensor Muscles During Flexion and Extension of Isokinetic Concentric Contraction [Текст] / Zhigang Wang, Fan. Zhang // Olympic sport and sport for all : proceedings of 17th International scientific congress ( Beijing, China, 2nd-6th, June, 2013) / International Association of Universities of Physical Culture and Sport, Capital University of Physical Education and Sports. — Beijing, 2013. — P. 387.