MEDVECKIS, Arturs. IDENTITY OF KĀRLIS RŪDOLFS KREICBERGS IN HIS LIFE. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, Rezekne, Latvia, v. 4, p. 512–524, 2016. DOI: 10.17770/sie2016vol4.1585. Disponível em: https://archive-journals.rtu.lv/sie/article/view/1338.. Acesso em: 11 mar. 2026.