Valkova, T., Parravicini, V., Saračević, E., Tauber, J., Svardal, K., & Krampe, J. (2021). A method to estimate the direct nitrous oxide emissions of municipal wastewater treatment plants based on the degree of nitrogen removal. Journal of Environmental Management, 279(1 February), 1–10. https://doi.org/10.1016/j.jenvman.2020.111563 ( reposiTUm)