@article{BKR:09counting,
  author    = {Mark Braverman and
               Raghav Kulkarni and
               Sambuddha Roy},
  title     = {Space-Efficient Counting in Graphs on Surfaces},
  journal   = {Computational Complexity},
  volume    = {18},
  number    = {4},
  year      = {2009},
  pages     = {601-649},
  ee        = {http://dx.doi.org/10.1007/s00037-009-0266-4},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}