Christian Louboutin may lose its exclusivity to red soles - Luxurylaunches
The Untold Truth Of Christian Louboutins
Red Bottom Heels: The Trademark Dispute – University of Cincinnati Law Review Blog
Christian Louboutin's Red-Sole Shoe Trademark Is Valid, To A Limited Extent: Second Circuit — Los Angeles Intellectual Property Trademark Attorney Blog — September 14, 2012
Could Christian Louboutin's Red Sole Trademark Be Invalid?, British Vogue
Christian Louboutin denied attempt to register red sole shoe as a trademark in Switzerland. — Fashion, Law & Business
Christian Louboutin scrambles to trademark his red-soled shoes
Christian Louboutin's Red Sole Trademark Held Up By Hague Court – WWD
Court Rules Louboutin Can Enforce a Trademark on Its Red Outsoles - The New York Times
Christian Louboutin's red sole trademark could be invalid