A trust region SQP algorithm for mixed-integer nonlinear programming. - Oliver Exler; Klaus Schittkowski (Optim. Lett., 2007)

A Tabu search-based algorithm for mixed-integer nonlinear problems and its application to integrated process and control system design. - Oliver Exler; Luis T. Antelo; Jose A. Egea; Antonio A. Alonso; Julio R. Banga (Comput. Chem. Eng., 2008)

A comparative study of SQP-type algorithms for nonlinear and nonconvex mixed-integer optimization. - Oliver Exler; Thomas Lehmann 003; Klaus Schittkowski (Math. Program. Comput., 2012)