*Giesler, Markus (2012). "How Doppelgänger Brand Images Influence the Market Creation Process: Longitudinal Insights from the Rise of Botox Cosmetic". Journal of Marketing. 76 (6): 55–68. doi:10.1509/jm.10.0406. S2CID167319134.
*Giesler, Markus (2012). "How Doppelgänger Brand Images Influence the Market Creation Process: Longitudinal Insights from the Rise of Botox Cosmetic". Journal of Marketing. 76 (6): 55–68. doi:10.1509/jm.10.0406. S2CID167319134.