1. Extracting oil from shale using solar energy
2. Solar Retorting of Oil Shale;Gregg;Lawrence Livermore National Laboratory report UCRL-52930,1980
3. Solar coal gasification
4. Standard Test Method for Oil from Oil Shale (Resource Evaluation by the USBM Fischer Procedure),1980
5. Assay Products from Green River Oil Shale;Singleton;Lawrence Livermore National Laboratory report UCRL-53273, Rev. 1,1986