• Characterization of oil shale ash dump waste water and effect of advanced oxidation techniques to its chemical compositionTuhkanen, Tuula; Maripuu, Lea; Vartiainen, Matti; Munter, ReinEnvironmental Protection Strategy Standardization and Control of Pollution Load on the Marine Environment : 1st International Conference, 20-24 September 1993, Tallinn, Estonia : abstracts1993 / p. 29-30