Effect of ozone on viability of activated sludge detected by oxygen uptake rate (OUR) and adenosine-5'-triphosphate (ATP) measurementJärvik, Oliver; Kamenev, Sven; Kasemets, Kaja; Kamenev, InnaOzone : science & engineering2010 / 6, p. 408-416 : ill https://www.tandfonline.com/doi/full/10.1080/01919512.2010.522911