@article{SIGMA_2007_3_a121,
     author = {Sun-Yung A. Chang and Jie Qing and Paul Yang},
     title = {Some {Progress} in {Conformal} {Geometry}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2007},
     volume = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2007_3_a121/}
}