Why are some e-mails forwarded and others not?

Tom M. Y. Lin, Heng-Hui Wu, Chun-Wei Liao, Tzu-Hsin Liu. Why are some e-mails forwarded and others not?. Internet Research, 16(1):81-93, 2006. [doi]

@article{LinWLL06,
  title = {Why are some e-mails forwarded and others not?},
  author = {Tom M. Y. Lin and Heng-Hui Wu and Chun-Wei Liao and Tzu-Hsin Liu},
  year = {2006},
  doi = {10.1108/10662240610642550},
  url = {http://dx.doi.org/10.1108/10662240610642550},
  tags = {e-science},
  researchr = {https://researchr.org/publication/LinWLL06},
  cites = {0},
  citedby = {0},
  journal = {Internet Research},
  volume = {16},
  number = {1},
  pages = {81-93},
}