1. Constrained single facility euclidean minimal covering problems;Carrizosa,1995
2. Weber's problem with attraction and repulsion;Chen,1991
3. A maxmin location problem;Dasarathy;Oper. Res.,1980
4. Geometrical solutions for some minimax location problems;Elzinga;Transport. Sci.,1972
5. Mathematische Lösungsverfahren für planare Standortprobleme;Hamacher,1995