Notes
- 1919 . “Wireless direction finders” . Literary Digest , 12 April : 22 – 23 .
- Mackay , R S . 1961 . “Radio telemetering from within the body” . Science , 20 October : 1196 – 1202 . 1961
- Cohen , D . 1966 . “How to trace a turtle” . Science Digest , March : 28 – 31 . 1966
- Schmidt , Annesley K . 1987 . The Use of Electronic Monitoring by Criminal Justice Agencies , National Institute of Justice .
- Schwitzgebel , R K . 1966 . ” Anthropotelemitry: Dr Schwitzgebel's Machine” . Harvard Law Review, , 80 (2) : 403 – 421 .