Quadratic divergence-free finite elements on Powell–Sabin tetrahedral grids Shangyou Zhang OriginalPaper 16 December 2010 Pages: 211 - 244
Convergence for nonnegative double splittings of matrices J. SongY. Song OriginalPaper 24 December 2010 Pages: 245 - 260
Preconditioned conjugate gradient methods for the solution of indefinite least squares problems Qiaohua LiuXianjuan Li OriginalPaper 24 March 2011 Pages: 261 - 271