Villalobos, Alfredo. «Stationary Temperatures in a Hollow Cylinder With Variable Thermic Conductivity Using a Hankel Transform». Rev. Téc. Fac. Ing. Univ. Zulia 25, no. 3 (1). Accedido abril 10, 2025. https://mail.produccioncientificaluz.org/index.php/tecnica/article/view/5787.