Symmetry classification of the one-dimensional Fokker - Planck equation with arbitrary coefficients of drift and diffusion. Neliniini Kolyvannya, [S. l.], v. 2, n. 3, p. 401–413, 1999. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/75. Acesso em: 22 jan. 2026.