Bilushchak Т.; YASCHYSHYN, I. Recording and verification of educational documents in schools of Lviv City with the help of designing of information and reference system. Turystyka i Rozwój Regionalny, [S. l.], n. 8, p. 15–23, 2017. DOI: 10.22630/TIRR.2017.8.14. Disponível em: https://tirr.sggw.edu.pl/article/view/3271. Acesso em: 4 grudz. 2024.