SIPAL, J. Load Optimization of Heat Exchanger Cascades. Elektronika ir Elektrotechnika, [S. l.], v. 109, n. 3, p. 93-96, 2011. DOI: 10.5755/j01.eee.109.3.179. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/179. Acesso em: 4 oct. 2022.