Mäkelä M., Geladi P., Grimm A., Dahl O., Pietiläinen A., Larsson S.H. Cyclone processing of green liquor dregs (GLD) with results measured and interpreted by ICP-OES and NIR spectroscopy. 2016. Chemical Engineering Journal. 304. 448-453. 10.1016/j.cej.2016.06.107.