@misc{metropol-hyytia-wipo-2011,
  author = {Esa Hyyti{\"a} and Aleksi Penttinen and Reijo Sulonen},
  assignee = {Aalto University},
  address = {Espoo, Finland},
  title = {Congestive Collapse Avoidance in a Dynamic Dial-a-Ride System},
  type = {{WIPO} Patent Application},
  number = {WO/2011/154613},
  dayfiled = {10},
  monthfiled = {Jun.},
  yearfiled = {2011},
  day = {15},
  month = {Dec.},
  year = {2011},
}