The repository contains the instances and the executable files relative to the scientific paper The constrained shortest path tour problem.
Ferone, D., P. Festa, F. Guerriero, and D. Laganà (2016). The constrained shortest path tour problem. Computers & Operations Research 74, pp. 64–77. doi: 10.1016/j.cor.2016.04.002.
@article{FERONE201664, title = "The constrained shortest path tour problem", journal = "Computers & Operations Research", volume = "74", pages = "64 - 77", year = "2016", issn = "0305-0548", doi = "10.1016/j.cor.2016.04.002", author = "Daniele Ferone and Paola Festa and Francesca Guerriero and Demetrio Laganà", keywords = "Shortest path problems, Network flow problems, Combinatorial optimization, Branch & Bound, GRASP" }