29 March 2018, Germany, Herzogenaurach: The headquarters of sporting goods manufacturer Puma. A bridge crossing a street connects two office complexes. Photo: Daniel Karmann/dpa Stock Photo - Alamy
Where Puma and Adidas Were Like Hatfields and McCoys - WSJ
Adidas - Wikipedia
Herzogenaurach: More Than Adidas and Puma – DW – 03/04/2006
Adidas, Puma und Schaeffler machen Herzogenaurach zur Milliarden-Stadt - WELT