ON THE DROUGHTS OCCURRING IN HISTORICAL PERIOD OF HONAN PROVINCE
HSIAO TING-KUEI, PENG FANG-TIAO, LI CHANG-FUH, CHOU BA-FU, SHENG FU-YIAO AND CHANG HERNG-BO
Acta Geographica Sinica . 1964, (3): 259 -276 .  DOI: 10.11821/xb196403005