Authors
anita.pawlak-jakubowska@polsl.pl
Geometry and Engineering Graphics Centre, Silesian University of Technology
anita.pawlak-jakubowska@polsl.pl
© 2020 Anita Pawlak-Jakubowska, Krystyna Romaniak, published by Cracow University of Technology
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 License.