Eiben, E., F. Fomin, F. Panolan, and K. Simonov. “Manipulating Districts to Win Elections: Fine-Grained Complexity”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 34, no. 02, Apr. 2020, pp. 1902-9, doi:10.1609/aaai.v34i02.5559.