Marcus Theurer. “Herrscher der Töne”. Frankfurter Allgemeine Zeitung, April 20, 2013, p. 13.
195
“Apple’s Streaming Music Problem”. Fortune, April 8, 2013, pp. 19–20.
196
Цены по данным HBR.org на май 2014 года.
197
Vijay Krishna, Auction Theory. London: Elsevier Academic Press, 2009 and Paul Klemperer, Auctions: Theory and Practice. Princeton: Princeton University Press, 2004.
