1. Noji, E.K., Armenian, H.K., Oganessian, A.: Issues of rescue and medical-care following the 1988 Armenian earthquake. Int. J. Epidemiol. 22, 1070–1076 (1993)
2. Johnson, A., Montgomery, J., Matthies, L.: Vision guided landing of an autonomous helicopter in hazardous terrain. In: Proceeding of the 2005 IEEE International Conference on Robotics and Automation, Barcelona, Spain, pp. 3966–3971 (2005)
3. Frontoni, E., Mancini, A., Caponetti, F., Zingaretti, P., Longhi, S.: Prototype UAV helicopter working in cooperative environments. In: IEEE/ASME International Conference on Advanced Intelligent Mechatronics, Zurich, Switzerland, vol. 1–3, pp. 949–995 (2007)
4. Mitchell, S.J., Braithwaite, G.R.: Perceptions of safety and offshore helicopter travel. Int. J. Eng. Sect. Manage. 2, 479–498 (2008)
5. Barbieri, S., Feltracco, P., Delantone, M., Spagna, A., Michieletto, E., Bortolato, A., Ori, C.: Helicopter rescue and prehospital care for drowning children: two summer season case studies. Minerva Anestesiol. 74, 703–707 (2008)