The blogging of Poland politicians during the president election
Romanenko, O. (2013). The blogging of Poland politicians during the president election. Economic Annals-XXI, 5-6(2), 10-13. http://ea21journal.world/index.php/ea-v130-03/
Trends of microblogging use in the political struggle in Poland Republic
Romanenko, O. V. (2012). Trends of microblogging use in the political struggle in Poland Republic. Economic Annals-XXI, 5-6, 30-32. http://ea21journal.world/index.php/ea-v120-09/