Schimmer, MarkusMarkusSchimmerMüller-Stewens, GünterGünterMüller-StewensSponland, PederPederSponland2023-04-132023-04-132011https://www.alexandria.unisg.ch/handle/20.500.14171/95391deTeaching CaseAppleMicrosoftGoogleInternetMobileThe Battle of Apple, Microsoft and Google : Strategic Lessons from a Converging Internet Industry 2000-2010case study