Title:A robust preconditioned minres solver for distributed time-periodic eddy current optimal control problemsAuthor(s):Michael Kolmbauer,  Ulrich LangerBooktitle:Fast Solvers for Partial Differential EquationsPublisher:EMS Publishing HousePage Reference:page 1561 – 1563, 3 page(s)Publishing:2011Series:Oberwolfach ReportsVolume:8

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