1. Ackerman S (2011) Last call for army’s ‘flying beer keg’ drone. Wired, 1 Dec 2011. http://www.wired.com/2011/01/last-call-for-armys-flying-beer-keg-drone . Accessed 26 Aug 2015
2. Alex D (2015) Over 13,000 Raven SUAVs have been delivered from AeroVironment to a variety of global operators, making it the most widely used UAV of its kind. MilitaryFactory.com, 2 Feb 2015. http://www.militaryfactory.com/aircraft/detail.asp?aircraft_id=888 . Accessed 26 Aug 2015
3. Atherton K (2013) Shanghai company claims it delivered cakes with drones. Popsci, 26 July 2013. http://www.popsci.com/technology/article/2013-07/shanghai-cake-company-claims-drone-delivery . Accessed 26 Aug 2015
4. Beckham J (2014) Drones will transform sports photography: once the FAA gets out of the way. Wired http://www.wired.com/2014/09/drones-will-transform-sports-photographyonce-faa-gets-way/ . Accessed 26 Aug 2015
5. Brands J, Schwanen T (2013) Experiencing and governing safety in the night-time economy: nurturing the state of being carefree. Emot Space Soc 11:67–78