Anderson acceleration of the alternating projections method for computing the nearest correlation matrix. - Nicholas J. Higham; Natasa Strabic (Numer. Algorithms, 2016)

Bounds for the Distance to the Nearest Correlation Matrix. - Nicholas J. Higham; Natasa Strabic (SIAM J. Matrix Anal. Appl., 2016)

Restoring Definiteness via Shrinking, with an Application to Correlation Matrices with a Fixed Block. - Nicholas J. Higham; Natasa Strabic; Vedran Sego (SIAM Rev., 2016)