Authors
Zbigniew Łosiewicz
Faculty of Maritime Technology and Transport, West Pomeranian University of Technology Szczecin, Al. Piastów 41 71-065, Szczecin, Poland
© 2017 Zbigniew Łosiewicz, published by Gdansk University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.