References
- Daddy Makers, daddynkidsmakers.blogspot.kr
- BIM principle and philosophy, sites.google.com/site/bimprinciple
- Erle Robotics, erlerobotics.com
- Ardupilot, ardupilot.org
- Conservative outfitters, 2016, HORRIBLE ACCIDENT CAUGHT ON VIDEO AS 38-YEAR-OLD WOMAN KNOCKED UNCONSCIOUS BY DJI PHANTOM DRONE
- ABC news, 2015, Marcel Hirscher: Champion alpine skier reflects on 'shameful' drone near miss at World Cup slalom)