K
[KSC08] Egor V. Kuzmin, Valery A. Sokolov, and Dmitry Y. Chaly. Boundedness Problems for Minsky Counter Machines. Doklady Mathematics 78(1):604-606. Pleiades Publishing, 2008. 
@article{doklady78(1)-KSC,
  author =              {Kuzmin, Egor V. and Sokolov, Valery A. and Chaly,
                         Dmitry Y.},
  title =               {Boundedness Problems for {M}insky Counter Machines},
  publisher =           {Pleiades Publishing},
  journal =             {Doklady Mathematics},
  volume =              {78},
  number =              {1},
  pages =               {604-606},
  year =                {2008},
}
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