1. Adeane A (2019) Blue Whale: What is the truth behind an online ‘suicide challenge’? BBC news. https://www.bbc.com/news/blogs-trending-46505722
2. Algavi LO, Kadyrova SN, Rastorgueva NE (2017) The blue whale game: the five dimensions of news storytelling. J Stud Literature Journalism 22(4):660–668
3. Article 29 data protection working party (2017a) Guidelines on Data Protection Officers (‘DPOs’), WP 243rev.01
4. Article 29 Data Protection Working Party (2017b) Opinion 2/2017 on data processing at work, WP 249, p 11
5. Article 29 Working Party (2010) Opinion 2/2010 on online behavioural advertising (WP171), p 3