R
[RY86] Louis E. Rosier and Hsu-Chun Yen. A Multiparameter Analysis of the Boundedness Problem for Vector Addition Systems. Journal of Computer and System Sciences 32(1):105-135. Academic Press, February 1986. 
@article{jcss32(1)-RY,
  author =              {Rosier, Louis E. and Yen, Hsu-Chun},
  title =               {A~Multiparameter Analysis of the Boundedness Problem
                         for Vector Addition Systems},
  publisher =           {Academic Press},
  journal =             {Journal of Computer and System Sciences},
  volume =              {32},
  number =              {1},
  pages =               {105-135},
  year =                {1986},
  month =               feb,
  doi =                 {10.1016/0022-0000(86)90006-1},
}
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