About this article
Published Online: Jan 19, 2016
Page range: 45 - 57
DOI: https://doi.org/10.1515/cait-2015-0088
Keywords
© 2015 Nevena Popova et al., published by De Gruyter Open
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Popova, Nevena
Shishkov, Georgi
Koprinkova-Hristova, Petia
Alexiev, Kiril