Kołtyś, Kamil, Piotr Pałka, Eugeniusz Toczyłowski, and Izabela Żółtowska. 2010. “Bandwidth Trading: A Comparison of the Combinatorial and Multicommodity Approach”. Journal of Telecommunications and Information Technology 40 (2): 67-72. https://doi.org/10.26636/jtit.2010.2.1074.