Abrahamsen, Mikkel; Stade, Jack (2024), "Hardness of packing, covering and partitioning simple polygons with unit squares", 65th IEEE Annual Symposium on Foundations of Computer Science, FOCS 2024, Chicago, IL, USA, October 27–30, 2024, IEEE, pp. 1355–1371, arXiv:2404.09835, doi:10.1109/FOCS61266.2024.00087
Abrahamsen, Mikkel; Stade, Jack (2024), "Hardness of packing, covering and partitioning simple polygons with unit squares", 65th IEEE Annual Symposium on Foundations of Computer Science, FOCS 2024, Chicago, IL, USA, October 27–30, 2024, IEEE, pp. 1355–1371, arXiv:2404.09835, doi:10.1109/FOCS61266.2024.00087