1. Low-rank coal slurries for gasification
2. C. M. Anderson , M. L. Swanson , W. G. Willson and T. A. Potas ,Proc. 16th Intern. Conf. on Coal Utilization unit Slurry Technology, Clearwater , Florida , 1991 , pp. 309 – 321 .
3. W. Willson , and W. Irwin ,Proc. 17th Intern. Conf, on Coal Utilization and Slurry Technology, Clearwater , Florida , 1992 , pp. 861 –871 .
4. Rheology of low viscosity, high concentration brown coal suspensions
5. Surface Properties of Coals Upgraded by Hydrothermal Treatment.