Schwemmer, CarstenCarstenSchwemmerZiewiecki, SandraSandraZiewiecki2019-09-192018-09-2620182056-3051https://fis.uni-bamberg.de/handle/uniba/44545engSocial Media Sellout : The Increasing Role of Product Promotion on YouTubearticle10.1177/2056305118786720