1. Järvinen, P.: The TC 9 1998 Report, Tampere, Finland (1998)
2. Berleur, J.: The TC 9 2000 Report, Washington, D.C. (2000)
3. Cao, Q., Lu, Y., Dong, D., Tang, Z., Li, Y.: The roles of bridging and bonding in social media communities. J. Am. Soc. Inform. Sci. Technol. 64, 1671–1681 (2013). https://doi.org/10.1002/asi.22866
4. McKenna, B., Vodanovich, S., Fan, T.: I heart you: how businesses are using social media to increase social capital. In: European, Mediterranean & Middle Eastern Conference on Information Systems (EMCIS), pp. 2016-06-23–2016-06-24 (2016). https://ueaeprints.uea.ac.uk/id/eprint/59287
5. Rishika, R., Kumar, A., Janakiraman, R., Bezawada, R.: The effect of customers’ social media participation on customer visit frequency and profitability: an empirical investigation. Inf. Syst. Res. 24, 108–127 (2013). https://doi.org/10.1287/isre.1120.0460