+}
+
+@article{o1985multi,
+ title={Multi-splittings of matrices and parallel solution of linear systems},
+ author={O'Leary, Dianne P. and White, Robert E.},
+ journal={SIAM Journal on Algebraic Discrete Methods},
+ volume={6},
+ number={4},
+ pages={630--640},
+ year={1985},
+ publisher={SIAM}
+}
+
+
+@article{frommer1992h,
+ title={H-splittings and two-stage iterative methods},
+ author={Frommer, Andreas and Szyld, Daniel B.},
+ journal={Numerische Mathematik},
+ volume={63},
+ number={1},
+ pages={345--356},
+ year={1992},
+ publisher={Springer-Verlag}
+}
+
+@article{bru1995parallel,
+ title={Parallel, synchronous and asynchronous two-stage multisplitting methods},
+ author={Bru, Rafael and Migall{\'o}n, Violeta and Penad{\'e}s, Jos{\'e} and Szyld, Daniel B},
+ journal={Electronic Transactions on Numerical Analysis},
+ volume={3},
+ pages={24--38},
+ year={1995}
+}
+
+@article{bai1999block,
+ title={Block and asynchronous two-stage methods for mildly nonlinear systems},
+ author={Bai, Zhong-Zhi and Migall{\'o}n, Violeta and Penad{\'e}s, Jos{\'e} and Szyld, Daniel B.},
+ journal={Numerische Mathematik},
+ volume={82},
+ number={1},
+ pages={1--20},
+ year={1999},
+ publisher={Springer}
+}
+
+@article{bahi2000asynchronous,
+ title={Asynchronous iterative algorithms for nonexpansive linear systems},
+ author={Bahi, Jacques M.},
+ journal={Journal of Parallel and Distributed Computing},
+ volume={60},
+ number={1},
+ pages={92--112},
+ year={2000},
+ publisher={Elsevier}
+}
+
+
+@article{couturier2008gremlins,
+ title={GREMLINS: a large sparse linear solver for grid environment},
+ author={Couturier, Rapha{\"e}l and Denis, Christophe and J{\'e}z{\'e}quel, Fabienne},
+ journal={Parallel Computing},
+ volume={34},
+ number={6},
+ pages={380--391},
+ year={2008},
+ publisher={Elsevier}
