1. The prize collecting traveling salesman problem;Balas;Networks,1989
2. Algorithms and solutions to multi-level vehicle routing problems;Chao,1993
3. The team orienteering problem;Chao;European Journal of Operational Research,1996
4. New optimization heuristics, the great deluge algorithm and the record-to-record travel;Dueck,1990
5. Analysis of a large-scale vehicle routing problem with an inventory component;Golden;Large Scale Systems,1984