薄井 洋基 他3名: "Pheology of Low Rank Coal Slurry Prepared by Upgrading Process" Proc.of Engineering Foundation Conference on Rheology in Mineral Industry. Feb.16-21 San Diego. TH-3 (1997)

Hiroki Usui 和其他 3 人：“通过升级过程制备的低阶煤浆的流变学”Proc.of Engineering Foundation Conference on Rheology in Mineral Industry Feb.16-21 San Diego (圣地亚哥)。