5 ms·
Vulnerability Of A Plane To Different Types Of Guns (p88) (1943) [pdf]
- h2odragon 6y agosee also [AMS :: Feature Column :: The Legend of Abraham Wald](http://www.ams.org/publicoutreach/feature-column/fc-2016-06 http://www.ams.org/publicoutreach/feature-column/fc-2016-06) and https://en.wikipedia.org/wiki/Abraham_Wald https://en.wikipedia.org/wiki/Abraham_Wald