Pashaie, Firooz. 2021. “Weakly Convex Hypersurfaces of Pseudo-Euclidean Spaces Satisfying the Condition LkHk+1 = λHk+1”. Proyecciones (Antofagasta, On Line) 40 (3):711-19. https://doi.org/10.22199/issn.0717-6279-3584.