Pingbing Ming, Zhong-ci Shi and Yun Xu
Superconvergence studies of quadrilateral nonconforming rotated Q_1 elements.
Int. J. Numer. Anal. Mod., 3 (2006), pp. 322-332. Abstract
A new superconvergence property of nonconforming rotated Q(1) element in 3D
COMPUT METH APPL M E, 197, 1-4(2007), pp. 95-102
Nonconforming spline collocation methods in irregular domains
NUMER METH PAR D E, 23, 6(2007), pp. 1509-1529
Convergence and superconvergence of a nonconforming finite element on anisotropic meshes
INT J NUMER ANAL MOD, 4, 1(2007), pp. 16-38
Fairweather G, Lin Q, Lin YP, et al.
Asymptotic expansions and Richardson extrapolation of approximate solutions for second order elliptic problems on rectangular domains by mixed finite element methods
SIAM J NUMER ANAL, 44, 3(2006), pp. 1122-1149