DOI: https://doi.org/10.1515/nispa-2016-0011 | Journal eISSN: 1338-4309
Language: English
Page range: 233 - 236
Published on: Aug 2, 2016
Published by: NISPAcee
In partnership with: Paradigm Publishing Services
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© 2016 György Hajnal, published by NISPAcee
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.