Open Science Research Excellence
Velts, O. , Uibu, M. , Kallas, J. , Kuusik, R.. "Prospects in Waste Oil Shale Ash Sustainable Valorization". World Academy of Science, Engineering and Technology, International Science Index 52, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering (2011), 5(4), 317 - 321.