1. Agarwal A, Biegler LT, Zitney SE (2009) Simulation and optimization of pressure swing adsorption systems using reduced-order modeling. Ind Eng Chem Res 48(5):2327–2343
2. Alexandrov NM (1997) Multilevel methods for MDO. In: Alexandrov NM, Hussaini MY (eds) Multidisciplinary design optimization: state of the art. Society for Industrial and Applied Mathematics, Philadelphia
3. Alexandrov NM (1998) A trust-region framework for managing approximations in constrained optimization problems. In: Proceedings of the first ISSMO/NASA internet conference on approximation and fast real analysis techniques in engineering optimization, 14–27 June
4. Alexandrov NM, Dennis JE Jr (1998) Multilevel algorithms for nonlinear optimization. In: Borggaard J, Burns J, Cliff E, Schreck S (eds) Computational methods for optimal design and control. Birkhäuser, Basel
5. Alexandrov NM, Dennis JE Jr, Lewis RM, Torczon V (1998) A trust-region framework for managing the use of approximate models in optimization. Struct Optim 15:16–23