Authors:
RUPPERT L
FINKELMAN R
BOTI E
MILOSAVLJEVIC M
TEWALT S
SIMON N
DULONG F
Citation: L. Ruppert et al., ORIGIN AND SIGNIFICANCE OF HIGH-NICKEL AND CHROMIUM CONCENTRATIONS INPLIOCENE LIGNITE OF THE KOSOVO BASIN, SERBIA, International journal of coal geology, 29(4), 1996, pp. 235-258