Сайдумов МХ. PERIODIZATION OF THE STAGES OF THE FORMATION AND DEVELOPMENT OF THE CHECHEN STATEHOOD FROM THE XX TO THE XXI CENTURIES: THE LEGAL FOUNDATIONS OF THE SOVIET, THE POST OF THE SOVIET AND RUSSIAN PERIODS OF STATE-LEGAL DEVELOPMENT OF THE REPUBLIC. Северо-Кавказский юридический вестник. 2020;1(1):20-31. doi:10.22394/2074-7306-2020-1-1-20-31