Reduction of Nitrogen Oxides Emissions from a Coal-Fired Boiler UnitAndrey V. Zhuikov, Dmitry V. Feoktistov, Natalya N. Koshurnikova and Lyudmila V. ZlenkoEPJ Web of Conferences, 110 (2016) 01050DOI: https://doi.org/10.1051/epjconf/201611001050