@article{
  author = {Charles-Owaba, O.E, Oluleye, A.E, Oyawale, F.A, Oke, S.K},
  title = {Technical Note: An opportunity cost maintenance scheduling framework for a fleet of ships: A case study},
  journal = {Journal of Industrial Engineering International},
  year = {2008},
  volume = {4},
  number = {6},
  pages = {64-77},
  doi = {}
}