On Some Nonendoreversible Engine Models with Nonlinear Heat Transfer Laws. - L. A. Arias-Hernández; Gonzalo Ares de Parga; Fernando Angulo-Brown (Open Syst. Inf. Dyn., 2003)

A Variational Ecological-Type Optimization of Some Thermal-Engine Models. - L. A. Arias-Hernández; Gonzalo Ares de Parga; Fernando Angulo-Brown (Open Syst. Inf. Dyn., 2004)