IDR(s): A Family of Simple and Fast Algorithms for Solving Large Nonsymmetric Systems of Linear Equations. - Peter Sonneveld; Martin B. van Gijzen (SIAM J. Sci. Comput., 2008)

Algorithm 913: An elegant IDR(s) variant that efficiently exploits biorthogonality properties. - Martin B. van Gijzen; Peter Sonneveld (ACM Trans. Math. Softw., 2011)

On the Convergence Behavior of IDR(s) and Related Methods. - Peter Sonneveld (SIAM J. Sci. Comput., 2012)