https://www.railwayage.com/passenger/rapid-transit/marta-orders-127-trainsets-from-stadler/
https://www.metro-report.com/news/single-view/view/stadler-to-supply-up-to-354-metro-cars-to-atlanta.html
https://en.wikipedia.org/wiki/Metropolitan_Atlanta_Rapid_Transit_Authority#Rolling_stock
https://en.wikipedia.org/wiki/Metropolitan_Atlanta_Rapid_Transit_Authority#Expansion_plans
https://jf-databits.blogspot.com/search?q=rolling+stock
