@article{JGG_2007_11_2_JGG_2007_11_2_a5,
     author = {W. Wang and J. Wallner and Y. Liu },
     title = {An {Angle} {Criterion} for {Conical} {Mesh} {Vertices}},
     journal = {Journal for geometry and graphics},
     pages = {199--208},
     publisher = {mathdoc},
     volume = {11},
     number = {2},
     year = {2007},
     url = {http://geodesic.mathdoc.fr/item/JGG_2007_11_2_JGG_2007_11_2_a5/}
}