Authors
Language: English
Page range: 5 - 13
Submitted on: Oct 16, 2017
Accepted on: Nov 24, 2017
Published on: Dec 19, 2017
Published by: University of Physical Education in Warsaw
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open
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© 2017 Jerzy Kosiewicz, published by University of Physical Education in Warsaw
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.