@techreport{JKKSV18,
  author        = {Hugo Jonker and Jelmer Kalkman and Benjamin Krumnow and Marc Sleegers and Alan Verresen},
  title         = {Shepherd: Enabling Automatic and Large-Scale Login Security Studies},
  year          = {2018},
  institution   = {ArXiv},
  number        = {1808.00840},
  url           = {https://arxiv.org/abs/1808.00840}
}