Пузирьов, М. С. “Education and Vocational Training of Convicts to Deprivation of Liberty for a Definite Period As a Form of Differentiation and Individualization of Execution of Punishment”. Problems of legality, no. 123 (October 2, 2013): 207–215. Accessed May 4, 2024. http://plaw.nlu.edu.ua/article/view/52540.