@article{assunccao2006efficient,
  title={Efficient Regionalization Techniques for Socio-economic Geographical Units Using Minimum Spanning Trees},
  author={Assunção, RM and Neves, MC and Câmara, G and da Costa Freitas, C},
  journal={{International Journal of Geographical Information Science}},
  volume={20},
  number={7},
  pages={797--811},
  year={2006},
  doi={10.1080/13658810600665111},
  publisher={Taylor \& Francis}
}


@article{calik_labbé_yaman_2015, 
  author={Calik, H and Labbé, M and Yaman, H},
  title={p-Center Problems}, 
  journal={Location Science},
  pages={79–92},
  year={2015},
  doi={10.1007/978-3-319-13111-5_4},
}


@article{chen_murray_jiang_2021,
  author={Chen, H and Murray, AT and Jiang, R},
  title={Open-source approaches for location cover models: capabilities and efficiency},
  journal={Journal of Geographical Systems},
  doi={10.1007/s10109-021-00350-w},
  year={2021}
}


@book{Church2009,
  address = {Hoboken},
  author = {Church, Richard L. and Murray, Alan T.},
  publisher = {John Wiley {\&} Sons, Inc.},
  title = {{Business Site Selection, Locational Analysis, and GIS}},
  year = {2009}
}


@article{church_2018,
  author = {Richard L. Church},
  title ={Tobler's Law and Spatial Optimization: Why Bakersfield?},
  journal = {International Regional Science Review},
  volume = {41},
  number = {3},
  pages = {287-310},
  year = {2018},
  doi = {10.1177/0160017616650612}
}


@book{church_murray_2018, 
  author={Church, RL and Murray, AT},
  title={Location covering models: history, applications and advancements}, 
  publisher={Springer},
  year={2018},
}


@article{current1988capacitated,
  title={{Capacitated Covering Models}},
  author={Current, John Richard and Storbeck, James Edward},
  journal={{Environment and Planning B: Planning and Design}},
  volume={15},
  number={2},
  pages={153--163},
  year={1988},
  publisher={SAGE Publications Sage UK: London, England},
  doi={10.1068/b150153}
  
}


@article{daskin_stern_edmund_1981,
author = {Daskin, MS and Stern, EH},
title = {A Hierarchical Objective Set Covering Model for Emergency Medical Service Vehicle Deployment},
journal = {Transportation Science},
doi = {10.1287/trsc.15.2.137},
year = {1981}
}


@book{daskin_2013, 
  author={Daskin, MS},
  title={Network and discrete location: models, algorithms, and applications}, 
  publisher={John Wiley & Sons, Inc.}, 
  year={2013},
}


@article{duque2011p,
  title={The p-Regions Problem},
  author={Duque, JC and Church, RL and Middleton, RS},
  journal={Geographical Analysis},
  volume={43},
  number={1},
  pages={104--126},
  year={2011},
  publisher={Wiley Online Library},
  doi={10.1111/j.1538-4632.2010.00810.x},
}


@article{duque2012max,
  author={Duque, JC and Anselin, L and Rey, SJ},
  title={THE MAX-P-REGIONS PROBLEM*},
  journal={Journal of Regional Science},
  volume={52},
  number={3},
  pages={397--419},
  doi={10.1111/j.1467-9787.2011.00743.x},
  year={2012}
}


@article{hakimi_1964, 
  author={Hakimi, SL},
  title={Optimum Locations of Switching Centers and the Absolute Centers and Medians of a Graph}, 
  journal={Operations Research},
  volume={12}, 
  number={3},
  pages={450–459},
  year={1964},
  doi={10.1287/opre.12.3.450},
}

@article{hakimi_1965, 
  author={Hakimi, SL},
  title={Optimum Distribution of Switching Centers in a Communication Network and Some Related Graph Theoretic Problems}, 
  journal={Operations Research},
  number={3},
  volume={13},
  pages={462–475},
  year={1965},
  doi={10.1287/opre.13.3.462},
}


@article{kuby_1987,
author = {Kuby, MJ},
title = {Programming Models for Facility Dispersion: The p-Dispersion and Maxisum Dispersion Problems},
journal = {Geographical Analysis},
doi = {10.1111/j.1538-4632.1987.tb00133.x},
year = {1987}
}


@article{MALISZEWSKI2012331,
author = {Maliszewski, PJ and Kuby, MJ and Horner, MW},
title = {A comparison of multi-objective spatial dispersion models for managing critical assets in urban areas},
journal = {Computers, Environment and Urban Systems},
doi = {10.1016/j.compenvurbsys.2011.12.006},
year = {2012}
}


@article{openshaw1977geographical,
  title={A Geographical Solution to Scale and Aggregation Problems in Region-building, Partitioning and Spatial Modelling},
  author={Openshaw, S},
  journal={Transactions of the Institute of British Geographers},
  pages={459--472},
  year={1977},
  publisher={JSTOR},
  doi={doi.org/10.2307/622300},
}


@article{openshaw1995algorithms,
  title={Algorithms for Reengineering 1991 Census Geography},
  author={Openshaw, S and Rao, L},
  journal={Environment and Planning A},
  volume={27},
  number={3},
  pages={425--446},
  year={1995},
  doi={10.1068/a270425},
  publisher={SAGE Publications Sage UK: London, England}
}


@article{shi_malik_2000,
    author={Jianbo Shi and Malik, J.},
    journal={{IEEE Transactions on Pattern Analysis and Machine Intelligence}},
    title={Normalized cuts and image segmentation},
    year={2000},
    volume={22},
    number={8},
    pages={888--905},
    doi={10.1109/34.868688}
}


@article{toregas_swain_revelle_bergman_1971, 
  author={Toregas, Constantine and Swain, Ralph and Revelle, Charles and Bergman, Lawrence},
  title={The Location of Emergency Service Facilities}, 
  volume={19}, 
  journal={Operations Research}, 
  number={6},
  pages={1363–1373},
  year={1971}, 
  doi={10.1287/opre.19.6.1363},
}


@article{von2007tutorial,
  title={A tutorial on spectral clustering},
  author={{von Luxburg}, Ulrike},
  journal={{Statistics and Computing}},
  volume={17},
  number={4},
  pages={395--416},
  year={2007},
  publisher={Springer},
  doi={10.1007/s11222-007-9033-z},
}


@article{wei2020efficient,
  title={Efficient Regionalization for Spatially Explicit Neighborhood Delineation},
  author={Wei, R and Rey, SJ and Knaap, E},
  journal={International Journal of Geographical Information Science},
  pages={1--17},
  year={2020},
  publisher={Taylor \& Francis},
  doi={10.1080/13658816.2020.1759806},
}


@misc{wolf2018,
  title={{ljwolf/spenc: GISRUK}},
  author={Wolf, LJ},
  year={2018},
  doi={10.5281/zenodo.1219904},
}


@article{wolf2021,
  author={Wolf, LJ},
  title={Spatially–encouraged spectral clustering: a technique for blending map typologies and regionalization},
  journal={International Journal of Geographical Information Science},
  volume={0},
  number={0},
  pages={1-18},
  year={2021},
  doi={10.1080/13658816.2021.1934475},
}


@inproceedings{yu_shi_2003,
  author={Yu, Stella X. and Shi, Jianbo},
  booktitle={Proceedings Ninth IEEE International Conference on Computer Vision}, 
  title={Multiclass spectral clustering}, 
  year={2003},
  volume={1},
  pages={313-319},
  doi={10.1109/ICCV.2003.1238361}}


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