Short-term tests on firing oil shale fuel applying low-temperature vortex technologyPihu, Tõnu; Konist, Alar; Nešumajev, Dmitri; Loosaar, Jüri; Siirde, Andres; Parve, Teet; Molodtsov, ArtjomOil shale2012 / p. 3-17 : ill https://artiklid.elnet.ee/record=b2479209*est