VAINAVIČIENĖ, Jadvyga. Corresponding directions line surfaces of line hypercomplex in multidimensional affine space . Lietuvos matematikos rinkinys, [S. l.], v. 38, n. II, p. 187–190 , 1998. DOI: 10.15388/LMD.1998.37814. Disponível em: https://www.journals.vu.lt/LMR/article/view/37814. Acesso em: 11 apr. 2025.