Artificial turf vs. real grass: NFL's ongoing problem with playing surfaces
How the Football Field Was Designed, from Hash Marks to Goal Posts, Arts & Culture
What is artificial turf? Synthetic grass has come a long way since the days of AstroTurf
New playing surface coming to Lions' Ford Field for 2023 season
Detroit Lions upgrading turf at Ford Field
Detroit Lions upgrading their playing surface at Ford Field
Michigan Stadium - Wikipedia
Detroit Lions upgrading turf at indoor practice facility, too
Turf time: Ranking the best and worst fields in the NFL - Sports Illustrated
Ford Field upgrading artificial turf to protect players
Pay to play: How 21 NFL stadiums have been financed
De La Salle Board of Trustees approve $2 million athletic field