@manual{Jabłoński:2017,
  author  = "J. Jabłoński and W. Wendrowski and M. Wendrowski",
  title  = "Circuit of a coder with integrated generator of non-recurrent keys and method for generating the non-recurrent coding keys, Patent #: 412893",
  note   = "Date of application: 12-04-2015",
  year   = "2017",
}