Silverman C. (2007). Regret the Error: How Media Mistakes Pollute the Press and Imperil Free Speech. New York. Silverman C. (ed.). (2014). Verification Handbook: An Ultimate Guideline on Digital Age Sourcing for Emergency Coverage. European Journalism Centre. Silverman C. (ed.). (2015). Verification Handbook for Investigative Reporting: A Guide to Online Search and Research Techniques for Using UGC and Open Source Information in Investigations. European Journalism Centre. Silverman C. (2015). Lies, Damn Lies, and Viral Content: How News Websites Spread (and Debunk) Online Rumors, Unveried Claims and Misinformation. A Tow Centre for Digital Journalism, Columbia Journalism School report, published in 2015 [https://towcenter.columbia.edu/news/lies-damn-lies-and-viral-content-how-news-websites-spread-and-debunk-online-rumors-unverified; 31.01.21]. Silverman C. (ed.). (2020). Verification Handbook: For Disinformation and Media Manipulation. European Journalism Centre. Wardle C. (2015). Presenting UGC in investigative reporting. In: C. Silverman (ed.). Verification Handbook for Investigative Reporting: A Guide to Online Search and Research Techniques for Using UGC and Open Source Information in Investigations (p. 54–60). European Journalism Centre. WHO (2020). Novel Coronavirus (2019-nCoV) Situation Report, 2.02.2020 [https://apps.who.int/iris/bitstream/handle/10665/330778/nCoVsitrep02Feb2020-eng.pdf?sequence=1&isAllowed=y; 30.01.21]. Zadrozny B. (2020). Investigating Social Media Accounts. In: C. Silverman (ed.). Verification Handbook: For Disinformation and Media Manipulation (p. 17–31). European Journalism Centre.