DURSUN, U.; TURGAY, N. C. Space-like surfaces in Minkowski space $E^4_1$ with pointwise 1-type Gauss map. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 71, n. 1, p. 59–72, 2019. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1419. Acesso em: 5 dec. 2025.