1. An Analysis of the Finite-Element Method;Strang,1973
2. the Finite Element Method: Linear Static and Dynamic Finite Element Analysis;Hughes,2012
3. the Finite Element Method for Elliptic Problems;Ciarlet,2002
4. Isogeometric Analysis: Toward Integration of CAD and FEA;Cottrell,2009
5. Subroutine package for calculating with B-splines;de Boor;SIAM J. Numer. Anal.,1971