引用本文: | 谢正辉, 简怀玉, 曾庆存. 非饱和土壤水流方程的极值原理[J]. 气候与环境研究, 2003, 8(2): 157-166. DOI: 10.3878/j.issn.1006-9585.2003.02.03 |
Citation: | Xie Zhenghui, Jian Huaiyu, Zeng Qingcun. Maximum Principles for an Unsaturated Flow Problem[J]. Climatic and Environmental Research, 2003, 8(2): 157-166. DOI: 10.3878/j.issn.1006-9585.2003.02.03 |