On the inf-type extremality solution to a Hamilton-Jacobi equation on the sphere $S^N$. Neliniini Kolyvannya, [S. l.], v. 3, n. 1, p. 74–77, 2000. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/99. Acesso em: 22 jan. 2026.