• Potential of biomass in Narva region regarding oil shale and biomass co-firingKask, Ülo; Loosaar, Jüri; Parve, Teet; Kask, Livia; Paist, Aadu; Muiste, Peeter; Padari, Allar; Astover, AlarOil shale2011 / 1S, p. 181-192 : ill https://artiklid.elnet.ee/record=b2286640*est