J. Sánchez-Martínez, A. Martínez, R. Romero, J. Ibarra–Bahena, J. Ponce-Ortega, M. Serna-González, Energy Evaluation of an Absorption Heat Transformer Operating with Water-Carrol Solution by Means of Mathematical Programming, Chemical Engineering Transactions. 39 (2014) 1477-1482. doi:10.3303/CET1439247.