Download Article
Download the full article as a PDF file.
Download the full article as a PDF file.
© 2018 Zofia Radikova, Adela Penesova, Miroslav Vlcek, Andrea Havranova, Monika Sivakova, Pavel Siarnik, Ingrid Zitnanova, Richard Imrich, Branislav Kollar, Peter Turcani, published by Slovak Academy of Sciences, Mathematical Institute
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.