Jeff Leeds:Amazon to Sell Warner Music Minus Copy Protection. In: The New York Times. 28.Dezember 2007, ISSN0362-4331 (nytimes.com[abgerufen am 8.Mai 2024]).
Stuart Dredge:Amazon Prime Music streaming service launches in the US with 1m songs. In: The Guardian. 12.Juni 2014, ISSN0261-3077 (theguardian.com[abgerufen am 14.Mai 2024]).
Jeff Leeds:Amazon to Sell Warner Music Minus Copy Protection. In: The New York Times. 28.Dezember 2007, ISSN0362-4331 (nytimes.com[abgerufen am 8.Mai 2024]).
Stuart Dredge:Amazon Prime Music streaming service launches in the US with 1m songs. In: The Guardian. 12.Juni 2014, ISSN0261-3077 (theguardian.com[abgerufen am 14.Mai 2024]).