Cheba, P. “Activation of Users in the Time of the COVID-19 Pandemic by Influencers on the Instagram Platform. Comparative Analysis of Selected Influencers”. Annales Universitatis Paedagogicae Cracoviensis. Studia De Cultura, vol. 14, no. 2, June 2022, pp. 76-93, doi:10.24917/20837275.14.2.5.