Directory of Open Access Journals (DOAJ)
Strike Plagiarism
University of Szczecin (Poland)
Academy of Economic Studies in Bucharest (Romania)
Széchenyi István University (Hungary)
Society for Scholarly Publishing (SSP)
CrossRef
Anca – Teodora Şerban – Oprescu
DOI: dx.doi.org/10.14254/2071-8330.2013/6-1/9