Modelling the Hop Constrained Connected Facility Location Problem on Layered Graphs. - Ivana Ljubic; Stefan Gollowitzer (Electron. Notes Discret. Math., 2010)

MIP Modeling of Incremental Connected Facility Location. - Ashwin Arulselvan; Andreas Bley; Stefan Gollowitzer; Ivana Ljubic; Olaf Maurer (INOC, 2011)

A Node Splitting Technique for Two Level Network Design Problems with Transition Nodes. - Stefan Gollowitzer; Luis Eduardo Neves Gouveia; Ivana Ljubic (INOC, 2011)

The Two Level Network Design Problem with Secondary Hop Constraints. - Stefan Gollowitzer; Luis Eduardo Neves Gouveia; Ivana Ljubic (INOC, 2011)

New Models for and Numerical Tests of the Hamiltonian p-Median Problem. - Stefan Gollowitzer; Dilson Lucas Pereira; Adam Wojciechowski (INOC, 2011)

MIP models for connected facility location: A theoretical and computational study. - Stefan Gollowitzer; Ivana Ljubic (Comput. Oper. Res., 2011)

A cutting plane algorithm for the Capacitated Connected Facility Location Problem. - Stefan Gollowitzer; Bernard Gendron; Ivana Ljubic (Comput. Optim. Appl., 2013)

Enhanced formulations and branch-and-cut for the two level network design problem with transition facilities. - Stefan Gollowitzer; Luis Eduardo Neves Gouveia; Ivana Ljubic (Eur. J. Oper. Res., 2013)

Layered Graph Approaches to the Hop Constrained Connected Facility Location Problem. - Ivana Ljubic; Stefan Gollowitzer (INFORMS J. Comput., 2013)

Rounding on the standard simplex: regular grids for global optimization. - Immanuel M. Bomze; Stefan Gollowitzer; E. Alper Yildirim (J. Glob. Optim., 2014)

A comparison of several models for the hamiltonian p-median problem. - Stefan Gollowitzer; Luis Eduardo Neves Gouveia; Gilbert Laporte; Dilson Lucas Pereira; Adam Wojciechowski (Networks, 2014)