The Ice Bowl, 50 years later: An oral history of Packers-Cowboys 1967 NFL Championship Game
Yet again, the Seahawks are relying on youth, and it seems to be working
Why didn't New York City convert Polo Grounds into a football-only stadium for the NFL Giants/Jets instead of demolishing it? It's bathtub shape and capacity would fit the AFL-NFL requirements. - Quora
Angel Stadium - Wikipedia
NY Giants have gone from empty seats to 'electric' home field edge
Giants' defensive line one step ahead in learning Patrick Graham's new system
MetLife Stadium to replace field in 2023, but not with grass
Giant Thoughts - Big Blue Interactive
Texans, Cowboys could have half-full stadiums, other teams might have no fans. How will that affect NFL games?