IbarraDY08'

@article{DBLP:journals/ijfcs/IbarraDY08,
  author    = {Oscar H. Ibarra and
               Zhe Dang and
               Linmin Yang},
  title     = {On Counter Machines, Reachability Problems, and Diophantine
               Equations},
  journal   = {Int. J. Found. Comput. Sci.},
  volume    = {19},
  number    = {4},
  year      = {2008},
  pages     = {919-934},
  ee        = {http://dx.doi.org/10.1142/S0129054108006042},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}