YSL Successfully Challenges Louboutin's Trademarked Red Soles

The Worldwide Trademark Battle over the Iconic Red Bottom Shoe - Chicago-Kent

Christian Louboutin sues Yves Saint Laurent over red soles on heels - The Washington Post

Yves Saint Laurent Defends Its Red Soles Against Christian Louboutin's Charges

Trademark issue: Red sole(ly) for Louboutin? LexDellmeier – Markenanwalt, Designanwalt München - Schutzrechte Marken, Designs, Patente, Gebrauchsmuster, Urheberrechte - Mark

10 Things You Didn't Know About Louboutin Shoes

Louboutin v. YSL Red Sole Shoe Trademark Infringement

Why do Louboutin high heels have red bottoms? - Quora

Trademarking A Color In The World Of Fashion Is Easier Said Than Done - Above the Law

Luxury Studies: Christian Louboutin

Louboutin vs. Yves Saint Laurent

Christian Louboutin gewinnt Rechtstreit gegen YSL