@misc{1157516,
  author = {Christoph Witzgall},
  title = {The parametric cost-revenue model (PAREC) for electronic message service systems:},
  year = {1986},
  month = {1986-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.TN.1225},
  language = {en},
}