LAKIS, Juozas. On The Experience of Developed Socialism in the Soviet Union. Problemos, [S. l.], v. 19, p. 5–11, 1977. DOI: 10.15388/Problemos.1977.19.5664. Disponível em: https://test.zurnalai.vu.lt/problemos/article/view/5664. Acesso em: 26 oct. 2025.