1.
Stegantseva P, Grechneva M. Two-dimensional nonisotropic surfaces with flat normal connection and a nondegenerate Grassmann image of constant curvature in the Minkowski space. Ukr. Mat. Zhurn. [Internet]. 2024Apr.26 [cited 2024Dec.4];76(4):533 -551. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/6743