@ARTICLE{ClarkJacob95,
  AUTHOR = {John A Clark and Jeremy L Jacob},
  TITLE = {On the Security of Recent Protocols},
  JOURNAL = {Information processing Letters},
  YEAR = 1995,
  VOLUME = 56,
  PAGES = {151--155}
}

@ARTICLE{HwangLeeLiKoChen_NeumannStubblebine,
  AUTHOR = {Tzonelih Hwang and Narn-Yoh Lee and Chuang-Ming Li and Ming-Yung Ko and Yung-Hsiang Chen},
  TITLE = {Two Attacks on Neumann-Stubblebine Authentication Protocols},
  JOURNAL = {Information Processing Letters},
  YEAR = 1995,
  VOLUME = 53,
  PAGES = {103 - 107}
}