Вострокнутов, Л. Д., Д. О. Булгаков, and В. В. Єрьоменко. “Obligatory Use of the Videotape Recording on the Competitions of All Levels As a Major Factor of Increase of Objectivity of Judging Is in the Amateur Boxing”. Slobozhanskyi Herald of Science and Sport, no. 4(27), Dec. 2011, pp. 257-60, https://journals.uran.ua/index.php/1991-0177/article/view/30393.