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Burstedde, Carsten; Holke, Johannes; Isaac, Tobin (2019). "On the number of face-connected components of Morton-type space-filling curves". Foundations of Computational Mathematics. 19 (4): 843–868. arXiv:1505.05055. doi:10.1007/s10208-018-9400-5. MR3989715.
Montanher, Tiago; Neumaier, Arnold; Markót, Mihály Csaba; Domes, Ferenc; Schichl, Hermann (2019). "Rigorous packing of unit squares into a circle". Journal of Global Optimization. 73 (3): 547–565. doi:10.1007/s10898-018-0711-5. MR3916193. PMID30880874.
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. ISBN979-8-3315-1674-1.
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Montanher, Tiago; Neumaier, Arnold; Markót, Mihály Csaba; Domes, Ferenc; Schichl, Hermann (2019). "Rigorous packing of unit squares into a circle". Journal of Global Optimization. 73 (3): 547–565. doi:10.1007/s10898-018-0711-5. MR3916193. PMID30880874.
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