VOSILIUS, R.; DREIMANAS, A. Über Geometrie homogenen Räumen. Lithuanian Mathematical Journal, [S. l.], v. 11, n. 4, p. 773–781, 1971. DOI: 10.15388/LMJ.1971.21032. Disponível em: https://www.journals.vu.lt/LMJ/article/view/21032.. Acesso em: 6 may. 2024.