General References
Missing Aircraft Search Research Studies |
National Land Search Operations Manual |
National SAR Supplement to the International Aeronautical and Maritime SAR Manual |
http://www.cap-es.net/?fbclid=IwAR3PRCMxCxTZ78xtxFZ2OoVL9eU4hP8hgMnyCTl-mfEt7bDYN19v6qUve6c