Yves Saint Laurent Defends Its Red Soles Against Christian Louboutin's Charges
Louboutin could lose red-sole monopoly
Christian Louboutin Continues to Fight for His Red Soled High Heels Trademark (Poll) – The Hollywood Reporter
Louboutin Wins Round in Red-Sole Shoe Appeal - WSJ
Trademark protection of color: Louboutin's red-soled shoe is a clever logo
The Fight for Red: Fashion Statement or Protected Trademark?
Goss-IPgirl: Louboutin Loses Yet Another Trademark Case Over Red-Soled Shoes
Christian Louboutin's Red Sole – Is it Solely a Shape Mark?
Yves Saint Laurent defends its red soles - Times of India