TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Mergel, Ines T1 - Building Holistic Evidence for Social Media Impact JF - Public Administration Review N2 - . Y1 - 2017 SN - 0033-3352 SS - 0033-3352 VL - 77 IS - 4 SP - 489 EP - 495 PB - Wiley CY - Hoboken, NJ ER -