Hartman, M., Trnka, O., & Pohořelý, M. (2007). Oxidation of Organic Nitrogen in Stoichiometric and Balance Calculations of the Combustion of Stabilized Sewage Sludge. Chemické Listy, 101(4). Získáno z http://blog.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/1802