@inproceedings{Chen.L2009c,
	Author = {Long Chen},
	Booktitle = {Domain Decomposition Methods in Science and Engineering XIX},
	Editor = {Yunqing Huang and Ralf Kornhuber and Olof Widlund and Jinchao Xu},
	Pages = {309--316},
	Title = {{Deriving the X-Z Identity from Auxiliary Space Method}},
	Year = {2010}}