@Article{ 
  BagFesMar20a,
  author = { Bagagiolo, Fabio and Festa, Adriano and Marzufero, Luciano },
  title = { The orienteering problem: a hybrid control formulation },
  journal = { IFAC-PapersOnLine },
  year = { 2021 },
  doi = { 10.1016/j.ifacol.2021.08.494 },
  volume = { 54 },
  number = { 5 },
  pages = { 175-180 },
  URL = { http://cvgmt.sns.it/paper/4962/ },
  note = { cvgmt preprint}
}