What is a smart helmet? - Quora
A future without football: Head injuries put NFL, game at risk - Sports Illustrated
New Smart Helmet Could Spot Concussions in Real Time - The Science of Psychotherapy
Hands-on: Specialized ANGi Helmet Crash Sensor
Sports Medicine: Pushing Ourselves to the Limit
A former Harvard quarterback tackles NFL concussion woes
Leatt DBX 3.0 Trail+ Full Face Helmet Revisited
6D Helmets Designs Revolutionary Head Protection
Virginia Tech Releases Highly Anticipated Helmet Ratings - The Chronicle of the Horse