Lincoln Financial Field Roof Renovation Study — MEIS architects
Ford Field Retractable Roof Proposal Being Studied - Soccer Stadium Digest
Before and After, Detroit Lions Stadiums (23/32): Pontiac Silverdome and Ford Field : r/nfl
Lightfoot floats idea of a dome over Soldier Field - Chicago Sun-Times
Is there such a thing as dome-field advantage in the NFL?
Ford Field won't get retractable roof for MLS
Detroit Lions: Ford Field retractable roof being explored
Decision on retractable roof for Ford Field coming soon as part of Detroit MLS bid
Retractable Stadium Roofing: A Waterproofer's Perspective