Geomorphological classification and evolution of plateau-beam-loess hills in Heshui county of the east Gansu province
YUAN Shuang, XU Qiang, ZHAO Kuanyao, WANG Xuan, WANG Cuilin
GEOGRAPHICAL RESEARCH . 2020, (8): 1920 -1933 .  DOI: 10.11821/dlyj020190988