Frozen 2 versus Christian Louboutin: could Anna's red-soled shoes lead to a trademark dispute? - World Trademark Review
The True Story Of How Christian Louboutin Shoes Got Those Trademark Red Soles
The man whose red soles have taken over the world
Can Christian Louboutin Trademark Red Soles? An E.U. Court Says No - The New York Times
You don't have sole right to red soles, YSL tells Louboutin
Christian Louboutin scrambles to trademark his red-soled shoes
Christian Louboutin and Marvel Launch Superhero-Inspired Collection – The Hollywood Reporter
The Worldwide Trademark Battle over the Iconic Red Bottom Shoe - Chicago-Kent
may breach trademark rights over fake Louboutin ads - The San Diego Union-Tribune
Louboutin defends red-sole trademark