Anaerobic co-digestion of sewage sludge with fish farming wasteKuusik, Argo; Pachel, Karin; Kuusik, Aare; Loigu, EnnThe 9th International Conference "Environmental Engineering" : 22-23 May 2014, Vilnius, Lithuania : selected papers2014 / [8] p. : ill Assessment of landfill wastewater pollutants and efficiency of different treatment methodsKuusik, Aare; Pachel, Karin; Kuusik, Argo; Loigu, EnnProceedings of the Estonian Academy of Sciences2016 / p. 452-471 : ill http://dx.doi.org/10.3176/proc.2016.4.10