TSELUYKO O, KRYVOSHEIA I. IN A FRIENDLY CIRCLE: (IN)FORMAL ASSOCIATIONS AND SOCIETIES AND DEVELOPMENT OF SPECIAL (AUXILIARY) HISTORICAL DISCIPLINES IN LVIV IN THE SECOND HALF OF THE 19th – 20th CENTURIES. EEHB [Internet]. 2024Mar.28 [cited 2024Jul.27];(30):8-23. Available from: http://eehb.dspu.edu.ua/article/view/299914