LANGFORD, J. J.; MCDONALD, P. Extremizing temperature functions of rods with Robin boundary conditions. Annales Fennici Mathematici, [S. l.], v. 47, n. 2, p. 759–775, 2022. DOI: 10.54330/afm.119344. Disponível em: https://afm.journal.fi/article/view/119344. Acesso em: 17 may. 2022.