1. Barth, L., Kobourov, S.G.: Semantic word cloud representations: hardness and approximation algorithms. In: Latin American Theoretical Informatics Symposium (2014). Springer, Berlin. https://doi.org/10.1007/978-3-642-54423-1textunderscore45
2. Barth, L., Kobourov, S.G., Pupyrev, S.: Experimental comparison of semantic word clouds. In: International Symposium on Experimental Algorithms. Springer, Berlin (2014). ISBN:978-3-319-07959-2_21
3. Bin Packing Problem. https://en.wikipedia.org/wiki/Bin_packing_problem. Accessed 21 May 2018
4. Binucci, C., Didimo, W., Spataro, E.: Fully dynamic semantic word clouds. In: IEEE International Conference on Information, Intelligence, Systems and Applications (IISA) (2016). https://doi.org/10.1109/IISA.2016.7785428
5. Feinberg, J.: Wordle-beautiful word clouds. http://www.wordle.net/. Accessed 16 Jan 2018