About this article
Published Online: Dec 10, 2015
Page range: 155 - 160
Received: Nov 02, 2014
Accepted: Dec 19, 2014
DOI: https://doi.org/10.1515/jbcr-2015-0142
Keywords
© 2014 Guergana Petrova et al., published by De Gruyter Open
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Petrova, Guergana
Perenovska, Penka I.
Miteva, Dimitrinka
Kabakchieva, Radost T.
Brankov, Ognyan G.
Drebov, Rosen S.