YERMACHENKO, I. Multiple solutions of the fourth‐order emden‐fowler equation. Mathematical Modelling and Analysis, [S. l.], v. 11, n. 3, p. 347–356, 2006. DOI: 10.3846/13926292.2006.9637322. Disponível em: https://transport.vilniustech.lt/index.php/MMA/article/view/9639. Acesso em: 14 aug. 2025.