PIVORAS, Saulius. Lithuanian - Latvian cooperation in resistance to the national oppression in the end of the 19th – beginning of the 20m cc. Lietuvos istorijos studijos, [S. l.], v. 6, p. 57–61, 1998. DOI: 10.15388/LIS.1998.37281. Disponível em: https://test.zurnalai.vu.lt/lietuvos-istorijos-studijos/article/view/37281. Acesso em: 26 oct. 2025.