Changes of coal rank and petrographic composition of coals from the drillhole BD 57 deposit of "Bzie-Dębina" in the Jastrzębie area (SW part of the Upper Silesian Coal Basin) Journal title: Geology, Geophysics & Environment Authors: K. Probierz, M. Kwaśny Subject(s):
An Investigation to Establish the Presence, Quality and Rank of Coal from Parts of Mui Basin in Kenya Journal title: International Journal of Science and Research (IJSR) Authors: Subject(s):
