@inproceedings{Chen.L;Nochetto.R;Zhang.C2010,
	Author = {Long Chen and Ricardo H. Nochetto and Chen-Song Zhang},
	Booktitle = {Domain Decomposition Methods in Science and Engineering XIX},
	Editor = {Yunqing Huang and Ralf Kornhuber and Olof Widlund and Jinchao Xu},
	Pages = {229--236},
	Title = {Multigrid Methods For Elliptic Obstacle Problems On 2D Bisection Grids},
	Year = {2010}}