@incollection{Wan12CVM,
   author = {Wan, S. and Ye, T. and Li, M. and Zhang, H. and Li, X.},
   title = {Efficient Spherical Parametrization Using Progressive Optimization},
   booktitle = {Computational Visual Media},
   series = {Lecture Notes in Computer Science},
   pages = {170-177},
   volume = {7633},
   year = {2012}
}