TY - CHAP U1 - Buchbeitrag A1 - Zerres, Christopher A1 - Litterst, Florian T1 - Social Media-Controlling T2 - Handbuch Marketing-Controlling Y1 - 2017 SN - 9783662504055 SB - 9783662504055 SP - 191 EP - 206 PB - Springer Gabler ER -