@None{cfvoegelinpersonalnotes,
  author = {Voegelin, C. F.},
  title  = {(personal notes)}
}

@None{cfvoegelinpersonalnotes,
  author = {Voegelin, C. F.},
  title  = {(personal notes)}
}

@None{cfvoegelinpersonalnotes,
  author = {Voegelin, C. F.},
  title  = {(personal notes)}
}