@Article{Junttila:FUIN37,
  author =       {Tommi A. Junttila},
  title =        {Finding Symmetries of Algebraic System Nets},
  journal =      "Fundamenta Informaticae",
  year =         {1999},
  volume =       {37},
  number =       {3},
  month =        feb,
  pages =        {269-289},
}