STIKLAKYTĖ, L. Über die Hyperfläche in bilinear-metrischen projektivem Raum. Lithuanian Mathematical Journal, [S. l.], v. 7, n. 3, p. 517–533, 1967. DOI: 10.15388/LMJ.1967.19996. Disponível em: https://www.journals.vu.lt/LMJ/article/view/19996.. Acesso em: 7 may. 2024.