After 21 Runners Died, China's Ultramarathon Looks Inward - The New York Times

Survivors and bereaved seek answers after 21 deaths in China ultramarathon, China

Organizer of Ultramarathon in China Fails to Protect Runners in Extreme Weather; 21 Die

AdventureCORPS Presents the Badwater 135 Ultramarathon

Organisers of ultramarathon in which 21 runners died jailed in China, China

China ultramarathon: inquiry launched after 21 runners die in cold weather, China

21 Runners Die In Extreme Weather In China Cross-Country Race : NPR

Member of the Month - San Francisco Road Runners Club

For Ukrainian Runners, a Brutal Race Made Sense When Little Else Did - The New York Times

UltraRunning Magazine January/February 2017 by UltraRunning

Ran for Our Lives': How the Deadliest Ultramarathon Claimed 21 Runners - WSJ

21 Runners Die In Extreme Weather In China Cross-Country Race : NPR

Chinese Ultramarathon Disaster