https://www.tsijournals.com/abstract/microelements-in-coals-basic-carriers-paragenesises-and-distribution-of-gross-contents-in-the-basic-carriers-13624.html
Microelements in Coals: Basic Carriers, Paragenesises and Di | 13624
On the example of coal deposits of Transbaikalia, the main constituents of coals are characterized, the inherited and newly formed macerals are...
microelementscoalsbasiccarriersdi