1. Is it time to improve the status of oil shale science?;Oja;Oil Shale,2007
2. Characteristic of oil shales and shale-like rocks of known deposits and outcrops;Urov;Oil Shale,1999
3. Comparison of oil shales from different deposits: oil shale pyrolysis and co-pyrolysis with ash;Oja;Oil shale,2007
4. Recent advances in direct coal liquefaction;Shui;Energies,2010
5. Coal pyrolysis: experiments, kinetic rates and mechanisms;Solomon;Prog Energy Combust Sci,1992