EN中文
REANALYSIS OF PRINCIPAL COMPONENT ANALYSIS TO RESUME PAST FLORA AND ENVIRONMENT ——TAKING FENZHUANG PROFILE IN BEIJING AS AN EXAMPLE
Zhang Jiahua, Kong Zaochen, Du Naiqiu
SCIENTIA GEOGRAPHICA SINICA . 1997, (4): 316 -322 .  DOI: 10.13249/j.cnki.sgs.1997.04.316