MELNIKOV, N.; PARADEZHENKO, G. A renormalized Gaussian approximation in the spin-fluctuation theory. Numerical Methods and Programming (Vychislitel’nye Metody i Programmirovanie), [S. l.], v. 15, n. 41, p. 461–475, 2014. Disponível em: https://en.num-meth.ru/index.php/journal/article/view/783. Acesso em: 30 apr. 2024.