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\newblock SIAM, Philadelphia (2010)

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\bibitem{NocWaeWal:adaptive}
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\newblock Adaptive barrier strategies for nonlinear interior methods.
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\newblock PhD thesis, Carnegie Mellon University, Pittsburgh, PA, USA, January
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\bibitem{WaeBie05:filterlocal}
A.~W{\"a}chter and L.~T. Biegler.
\newblock Line search filter methods for nonlinear programming: {L}ocal
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\newblock {\em SIAM Journal on Optimization}, 16(1):32--48, 2005.

\bibitem{WaeBie05:filterglobal}
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\newblock {\em SIAM Journal on Optimization}, 16(1):1--31, 2005.

\bibitem{WaecBieg06:mp}
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