@inproceedings{EHHR:complex,
  author    = {A. Ehrenfeucht and J. Hage and T. Harju and G. Rozenberg},
  title     = {Complexity Issues in Switching of Graphs},
  year      = {2000},
  volume    = {1764},
  booktitle = {Theory And Application Of Graph Transformations - TAGT '98},
  editor    = {H. Ehrig and G. Engels and H.-J. Kreowski and G. Rozenberg},
  series    = {Lecture Notes in Computer Science},
  publisher = {Springer Verlag},
  address   = {Berlin},
  pages     = {59--70},
  pubcat    = {workshop},
}