This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 PL License (creativecommons.org/licenses/by/3.0/pl/), which permits redistribution, commercial and non commercial, provided that the article is properly cited. © The Author(s) 2014
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© February 2014 by the author(s). This open access article is distributed under a Creative Commons A...
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License (creativecommons.org/licenses/by/3.0/pl/), which permits redistribution, commercial and non ...
Copyright © 2014 Alexander P. Lysenko et al. This is an open access article distributed under the Cr...
© 2014 by the author(s). This open access article is distributed under a Creative Commons Attributio...
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Open Access This article is distributed under the terms of the Creative Commons Attribution Noncomme...
© 2013 by the author(s). This open access article is distributed under a Creative Commons Attributio...
© The Author(s) 2015. This article is published with open access at Springerlink.com. This article i...
The Author(s) 2014. This article is published with open access at Springerlink.co
©The Author(s), 2014. This article is distributed under the terms of the Creative Commons Attributio...
# The Author(s) 2014. This article is published with open access at Springerlink.co
# The Author(s) 2014. This article is published with open access at Springerlink.co
© 2014 by the author(s). This open access article is distributed under a Creative Commons Attributio...
rap.sagepub.com Creative Commons CC BY-NC-ND: This article is distributed under the terms of the Cre...
© February 2014 by the author(s). This open access article is distributed under a Creative Commons A...
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-C...
License (creativecommons.org/licenses/by/3.0/pl/), which permits redistribution, commercial and non ...
Copyright © 2014 Alexander P. Lysenko et al. This is an open access article distributed under the Cr...
© 2014 by the author(s). This open access article is distributed under a Creative Commons Attributio...
rap.sagepub.com Creative Commons NonCommercial-NoDerivs CC-BY-NC-ND: This article is distributed und...
Open Access This article is distributed under the terms of the Creative Commons Attribution Noncomme...
© 2013 by the author(s). This open access article is distributed under a Creative Commons Attributio...
© The Author(s) 2015. This article is published with open access at Springerlink.com. This article i...
The Author(s) 2014. This article is published with open access at Springerlink.co
©The Author(s), 2014. This article is distributed under the terms of the Creative Commons Attributio...
# The Author(s) 2014. This article is published with open access at Springerlink.co
# The Author(s) 2014. This article is published with open access at Springerlink.co
© 2014 by the author(s). This open access article is distributed under a Creative Commons Attributio...
rap.sagepub.com Creative Commons CC BY-NC-ND: This article is distributed under the terms of the Cre...
© February 2014 by the author(s). This open access article is distributed under a Creative Commons A...
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-C...