1. Preparation of low-sulfur expansible graphite;Song;Chinese Journal of Applied Chemistry,1995
2. Preparation of low sulphur content expansible graphite with potassium bichromate as oxidant;Li;Chinese Journal of Carbon,1997
3. Preparation of low-sulphur expandable graphite;Li;Fine Chemicals,2003
4. Preparation of low sulphur content and expandable graphite;Chen;Carbon,1996