CHEMICAL INDUSTRY AND ENGINEERING PROGRESS, Volume 21, Issue z1,2002, Pages 71-76, doi:10.3321/j.issn:1000-6613.2002.z1.019
JOURNAL OF CHINESE PHYSICIAN, , Issue z1,2002, Pages 273-274, doi:10.3760/cma.j.issn.1008-1372.2002.z1.225
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS, Volume 21, Issue z1,2002, Pages 9-11, doi:10.3321/j.issn:1000-6613.2002.z1.003