An Analysis of Climate Comfort Degree and Tourism Potential Power of Cities in Northern China in Summer to the North of 40°N
YU Zhi-kang, SUN Gen-nian, LUO Zheng-wen, FENG Qing
JOURNAL OF NATURAL RESOURCES . 2015, (2): 327 -339 .  DOI: 10.11849/zrzyxb.2015.02.015