Adidas vs. Cougar: The rivalry between the two brothers that is talked about to this day - Free Press
Qwintry - Did You Know that the makers of Adidas and PUMA are Brothers? Adolf Dassler aka Adi was the founder of the sportswear company Adidas, and the younger brother of Rudolf
Adolf Dassler And The Little-Known Nazi-Era Origins Of Adidas
Did You Know? Creators Of Adidas And Puma Were Brothers - Espact
How Adidas & Puma Started From A Feud Between Two Brothers | by Hustle Over Everything | Medium