HUZ A.M; ZHEVELIEVA I.S; SOLODKA O.M; TUGAROVA O.K; SHEPETA O.V; HARASYM P. S. MAIN STAGES OF ESTABLISHMENT OF THE SYSTEM OF PROTECTION OF STATE SECRETS IN POLAND IN THE SECOND HALF OF THE 20th CENTURY – IN THE FIRST HALF OF THE 21st CENTURY: HISTORICAL AND LEGAL ANALYSIS. Elementary Education Online, [S. l.], v. 20, n. 5, p. 4223–4228, 2023. Disponível em: https://ilkogretim-online.org/index.php/pub/article/view/6079. Acesso em: 5 jan. 2025.