Characterization and enhancement of oil shale fly ash from CFB boilerPikkor, Heliis; Järvik, Oliver; Lees, Heidi; Konist, Alar; Siirde, Andres; Maaten, Birgit6th International Conference on Smart and Sustainable Technologies, SpliTech 20212021 / p. 1-4 https://doi.org/10.23919/SpliTech52315.2021.9566470 Comparison of the most likely low-emission electricity production systems in EstoniaBaird, Zachariah Steven; Nešumajev, Dmitri; Järvik, Oliver; Powell, Kody M.PLoS ONE2021 / e0261780, 37 p https://doi.org/10.1371/journal.pone.0261780 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS