TY - Journal of Geographical Sciences A1 - JIANG Fengqing, HU Ruji, LI Zhen T1 - Variations and trends of the freezing and thaw- ing index along the Qinghai-Xizang Railway for 1966?2004 Y1 - 2008-02-25 00:00:00.0 JF - Journal of Geographical Sciences JO - Journal of Geographical Sciences SP - 3 EP - 16 VL - 18 IS - 1 UR - {https://www.geogsci.com/EN/10.1007/s11442-008-0003-y} N1 - 10.1007/s11442-008-0003-y ER -