Boykov, Georgi, Polina Petkova, Tamara Tomova, Peter Kynchev, Danail Mirchev, Desislava Stoyanova, Mehmed Mersim, Kristiana Sergieva, Radina Radoykova, Vanya Vylcheva, Gergana Stoikova, Nebi Belev, Nikolay Baltov, Lubomir Dimitrov, Alexandra Prunova, Milena Hadzieva, and Desislava Uzunova. 2011. “Volunteering: Between the Organization and the Citizens’ Initiative. Aspects, Benefits, Future”. Postmodernism Problems 1 (1), 147-56. https://www.pmpjournal.org/index.php/pmp/article/view/161.