• Investigations into methods of purification fom nitrogen compounds of phenolic waters of the Kiviter processKekiševa, Ljudmilla; Grigorjeva, Larissa; Ostroukhov, N.; Petrovich, N.; Riisalu, Hella; Soone, JüriInternational Oil Shale Symposium : Tallinn, Estonia, June 8-11, 2009 : future energy solutions : come and share your vision!2009 / p. 85 http://www.ester.ee/record=b4775098*est