In this study of the physical properties of an inherently brittle material such as coal it is of interest to determine the effect of certain physical properties (such as porosity) on the strength of the substance.
Reference:
Sevenster, P.G. 1964. A device for measuring the strength of small particles. http://hdl.handle.net/10204/12815 .
Sevenster, P. G. (1964). A device for measuring the strength of small particles Retrieved from http://hdl.handle.net/10204/12815
Sevenster, P.G A device for measuring the strength of small particles. 1964. http://hdl.handle.net/10204/12815
Sevenster PG. A device for measuring the strength of small particles. 1964 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/12815
