Svoboda, K., Hartman, M., Trnka, O., & Cermak, J. (2003). High-Temperature Fuel Cells, Their Status, Fuels and Applications. Chemické Listy, 97(1). Získáno z http://ww.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/2257