@article{cost279-Aalto-ORL-2004,
  author = {S. Aalto and U. Ayesta and E. Nyberg-Oksanen},
  title = {M/G/1/MLPS compared to M/G/1/PS},
  journal = {Operations Research Letters},
  month = {September},
  year = {2005},
  volume = {33},
  number = {5},
  pages = {519--524},
  url = {http://www.elsevier.nl/},
}