1. Rare earth elements: their importance in understanding soil genesis;Aide,2012
2. Delineation of Rome Trough in eastern Kentucky by gravity and deep drilling data;Ammerman;Am. Assoc. Pet. Geol. Bull.,1979
3. Geochemistry and rare-metal potential of coals of the Sakhalin coal basin, Sakhalin island, Russia;Arbuzov;Int. J. Coal Geol.,2023
4. Analysis of Rare Earth Elements in Geologic Samples Using Inductively Coupled Plasma Mass Spectrometry;Bank,2016