• Surface characterisation of Estonian oil shale semi-cokePikkor, Heliis; Lees, Heidi; Maaten, Birgit; Järvik, Oliver; Konist, AlarChemical engineering transactions2020 / p. 853-858 : ill https://doi.org/0.3303/CET2081143 https://www.scopus.com/sourceid/19600161818 https://www.scopus.com/record/display.uri?eid=2-s2.0-85092026171&origin=inward&txGid=dc9672753a4e2daf1be3b30827100a0e