@mastersthesis{oan-Siren-thesis-2002,
  author = {Elena Sir{\'e}n},
  title = {Optical Packet Switching},
  type = {Master's thesis},
  school = {Helsinki University of Technology},
  year = {2002},
  url = {http://www.netlab.hut.fi/tutkimus/oan/publ/thesis_Siren.pdf},
}