Brothers Divided: The Astonishing Origin Story of Puma and Adidas - human stories
Amazon.com: Sneaker Wars: The Enemy Brothers Who Founded Adidas and Puma and the Family Feud That Forever Changed the Business of Sports: 9780061246586: Smit, Barbara: Books
Nike v Adidas v Puma: Holiday Shopping Competition
How Puma and Adidas' Rivalry Divided Their Founding Town for 70 Years