R
[Ros73] Robert W. Rosenthal. The network equilibrium problem in integers. Networks 3(1):53-59. John Wiley & Sons, January 1973. 
@article{netw3(1)-Ros,
  author =              {Rosenthal, Robert W.},
  title =               {The network equilibrium problem in integers},
  publisher =           {John Wiley \& Sons},
  journal =             {Networks},
  volume =              {3},
  number =              {1},
  pages =               {53-59},
  year =                {1973},
  month =               jan,
  doi =                 {10.1002/net.3230030104},
}
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