A Singular Perturbation Method of Phase Change Temperature of Petroleum Pipeline in Seasonally Frozen Ground Regions for Irregular Boundary Configuration
LI Nan-sheng, LI Hong-sheng, DING De-wen, WAN Shu-xia
JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY . 2003, (4): 453 -460 .  DOI: 10.7522/j.issn.1000-0240.2003.0080

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