Numerical methods for the QCD overlap operator: III. Nested iterations. - Nigel Cundy; J. van den Eshof; Andreas Frommer; Stefan Krieg; Thomas Lippert; Katrin Schäfer (Comput. Phys. Commun., 2005)

Short-recurrence Krylov subspace methods for the overlap Dirac operator at nonzero chemical potential. - Jacques Bloch; Tobias Breu; Andreas Frommer; Simon Heybrock; Katrin Schäfer; Tilo Wettig (Comput. Phys. Commun., 2010)