Gulyas, A. 2016. Social media and journalism: hybridity, convergence, changing relationship with the audience and fragmentation. in: Franklin, B. and Eldridge, S. (ed.) Routledge Companion to Digital Journalism Studies Routledge.
Gulyas, A. 2013. Public service media in local communities: a case study from England. in: Gulyas, A. and Hammer, F. (ed.) Public Service Media In The Digital Age: International Perspectives Newcastle Cambridge Scholars Publishing. pp. 139-154
Gulyas, A. 2013. The influence of professional variables on journalists' uses and views of social media: a comparative study of Finland, Germany, Sweden and the United Kingdom. Digital Journalism. 1 (2). https://doi.org/10.1080/21670811.2012.744559
Pole, K., Gulyas, A., Rehkopf, F., Cision Germany and Canterbury Christ Church University 2012. Journalists views and use of social media: Cision Social Journalism Study 2012: global report. Frankfurt Cision Germany.
Gulyas, A. 2000. The development of the tabloid press in Hungary. in: Sparks, C. and Tulloch, J. (ed.) Tabloid Tales: Global Debates over Media Standards Lanham, USA Rowman and Littlefield. pp. 111-128
Gulyas, A. 1998. Kolonizacia medii alebo triumf trhovej liberalizacie? (Media colonisation or the triumph of market liberalization?). Otazky Zurnalistiky (Problems of Journalism - Journal of Theory, Research and Practice Means of Mass Communication). 41 (2), pp. 99-107.
Gulyas, A. 1998. In the slow lane on the information superhighway: Hungary and the information revolution. Convergence: The International Journal of Research into New Media Technologies. 4 (2), pp. 76-92.