Co-processing of biomass and heavy shale oil using catalytical hydrocracking methodLuik, Hans; Luik, Lea; Johannes, Ille; Tiikma, Laine; Sokolova, Julia17th European Biomass Conference & Exhibition from Research to Industry and Markets : proceedings of the International Conference held in Hamburg, Germany, 29 June - 3 July 20092009 / p. 1082-1084