Tracing Study on REEs of Coal Measure in Late Permian in Bijie City,Guizhou Province,China;

Geochemistry of the barkinite liptobiolith(Late Permian) from the Jinshan Mine,Anhui Province;

Analysis on the Characters of Rare-Earth Element in the Late Permian Coal from South China;

Evaluation on CBM Resources of Late Permian Epoch and Selected Exploration Areas in Yunnan and Guizhou Region;

Preservative Law of Harmful Elements in Coal of Late Permian Epoch and Its Environmental Geological Problems in Southern Guizhou Province;