TSELUYKO, O. and KRYVOSHEIA, I. 2024. 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. EAST EUROPEAN HISTORICAL BULLETIN. 30 (Mar. 2024), 8–23. DOI:https://doi.org/10.24919/2519-058X.30.299914.