ArvindV08'

@article{DBLP:journals/eccc/ArvindV08,
  author    = {Vikraman Arvind and
               T. C. Vijayaraghavan},
  title     = {The Orbit problem is in the GapL Hierarchy},
  journal   = {Electronic Colloquium on Computational Complexity (ECCC)},
  volume    = {15},
  number    = {052},
  year      = {2008},
  ee        = {http://eccc.hpi-web.de/eccc-reports/2008/TR08-052/index.html},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}