TY  - SER
AU  - Ollila,Heikki J.
AU  - Daavitsainen,Jouni H.A.
AU  - Daavitsainen,Jouni H.A.
TI  - Mineral classification revisited: Use of quasiternary diagrams in the visualization of compositional distribution of inorganic material in coal
KW  - Carbón
ER  -