Dong Xue Leszek F. Demkowicz Chandrajit L. Bajaj Reconstruction of G 1 Surfaces With Biquartic Patches for HP Fe Simulations. 323-332 2004 IMR http://www.andrew.cmu.edu/user/sowen/abstracts/Xu1021.html db/conf/imr/imr2004.html#XueDB04