Шульга Алексей Сергеевич (Olexii Shulha). 2015. “About Aspects of Economic Technique of Ascent the Routes in the Discipline of Sport Climbing «lead»”. Slobozhanskyi Herald of Science and Sport, no. 3(47) (June):125-28. https://doi.org/10.15391/snsv.2015-3.024.