references.bib

@article{bruyns2020,
	title = {Urban volumetrics: From vertical to volumetric urbanisation and its extensions to empirical morphological analysis},
	author = {{Bruyns}, {Gerhard JB} and {Higgins}, {Christopher D} and {Nel}, {Darren H}},
	year = {2020},
	month = {07},
	date = {2020-07-24},
	journal = {Urban Studies},
	pages = {922--940},
	volume = {58},
	number = {5},
	doi = {10.1177/0042098020936970},
	url = {http://dx.doi.org/10.1177/0042098020936970},
	langid = {en}
}

@incollection{tobler1993,
  title={Non-isotropic Modeling},
  author={{Tobler}, {Waldo}},
  booktitle={Three presentations on geographical analysis and modeling},
  year={1993},
  publisher={{National Center for Geographic Information and Analysis}}
}

@misc{brundson2018, 
  url={https://rpubs.com/chrisbrunsdon/hiking}, 
  title={Tobler's Hiking Function}, 
  author={{Brundson}, {Chris}}, 
  year={2018}
}

@misc{landsd2021, 
  url={https://data.gov.hk/en-data/dataset/hk-landsd-openmap-3d-pedestrian-network}, 
  title={3D Pedestrian Network}, 
  author={LandsD}, 
  institution = {Lands Department},
  year={2021}
}

@article{goodchild2020,
	title = {Beyond Tobler{\textquoteright}s Hiking Function},
	author = {{Goodchild}, {Michael F.}},
	year = {2020},
	month = {08},
	date = {2020-08},
	journal = {Geographical Analysis},
	pages = {558--569},
	volume = {52},
	number = {4},
	doi = {10.1111/gean.12253},
	url = {http://dx.doi.org/10.1111/gean.12253},
	langid = {en}
}

@article{paez2020,
	title = {Comparing distance, time, and metabolic energy cost functions for walking accessibility in infrastructure-poor regions},
	author = {{Páez}, {Antonio} and {Anjum}, {Zoha} and {Dickson-Anderson}, {Sarah E.} and {Schuster-Wallace}, {Corinne J.} and {Martín Ramos}, {Belén} and {Higgins}, {Christopher D.}},
	year = {2020},
	month = {01},
	date = {2020-01},
	journal = {Journal of Transport Geography},
	pages = {102564},
	volume = {82},
	doi = {10.1016/j.jtrangeo.2019.102564},
	url = {http://dx.doi.org/10.1016/j.jtrangeo.2019.102564},
	langid = {en}
}

@article{higgins2019,
	title = {A 4D spatio-temporal approach to modelling land value uplift from rapid transit in high density and topographically-rich cities},
	author = {{Higgins}, {Christopher D.}},
	year = {2019},
	month = {05},
	date = {2019-05},
	journal = {Landscape and Urban Planning},
	pages = {68--82},
	volume = {185},
	doi = {10.1016/j.landurbplan.2018.12.011},
	url = {http://dx.doi.org/10.1016/j.landurbplan.2018.12.011},
	langid = {en}
}

@article{campbell2019,
	title = {Using crowdsourced fitness tracker data to model the relationship between slope and travel rates},
	author = {{Campbell}, {Michael J.} and {Dennison}, {Philip E.} and {Butler}, {Bret W.} and {Page}, {Wesley G.}},
	year = {2019},
	month = {05},
	date = {2019-05},
	journal = {Applied Geography},
	pages = {93--107},
	volume = {106},
	doi = {10.1016/j.apgeog.2019.03.008},
	url = {http://dx.doi.org/10.1016/j.apgeog.2019.03.008},
	langid = {en}
}

@article{irmischer2017,
	title = {Measuring and modeling the speed of human navigation},
	author = {{Irmischer}, {Ian J.} and {Clarke}, {Keith C.}},
	year = {2017},
	month = {02},
	date = {2017-02-28},
	journal = {Cartography and Geographic Information Science},
	pages = {177--186},
	volume = {45},
	number = {2},
	doi = {10.1080/15230406.2017.1292150},
	url = {http://dx.doi.org/10.1080/15230406.2017.1292150},
	langid = {en}
}

@article{pingel2010,
	title = {Modeling Slope as a Contributor to Route Selection in Mountainous Areas},
	author = {{Pingel}, {Thomas J.}},
	year = {2010},
	month = {01},
	date = {2010-01},
	journal = {Cartography and Geographic Information Science},
	pages = {137--148},
	volume = {37},
	number = {2},
	doi = {10.1559/152304010791232163},
	url = {http://dx.doi.org/10.1559/152304010791232163},
	langid = {en}
}

@article{sun2019,
	title = {Connecting the city: A three-dimensional pedestrian network of Hong Kong},
	author = {{Sun}, {Guibo} and {Webster}, {Chris} and {Zhang}, {Xiaohu}},
	year = {2019},
	month = {05},
	date = {2019-05-06},
	journal = {Environment and Planning B: Urban Analytics and City Science},
	pages = {60--75},
	volume = {48},
	number = {1},
	doi = {10.1177/2399808319847204},
	url = {http://dx.doi.org/10.1177/2399808319847204},
	langid = {en}
}

@book{imhof1950,
  title={Gel{\"a}nde und karte},
  author={{Imhof}, {Eduard}},
  year={1950},
  publisher={Rentsch}
}
@article{ji2010,
	title = {Potential Benefits of GPS/GLONASS/GALILEO Integration in an Urban Canyon {\textendash} Hong Kong},
	author = {{Ji}, {Shengyue} and {Chen}, {Wu} and {Ding}, {Xiaoli} and {Chen}, {Yongqi} and {Zhao}, {Chunmei} and {Hu}, {Congwei}},
	year = {2010},
	month = {09},
	date = {2010-09-13},
	journal = {Journal of Navigation},
	pages = {681--693},
	volume = {63},
	number = {4},
	doi = {10.1017/s0373463310000081},
	url = {http://dx.doi.org/10.1017/S0373463310000081},
	langid = {en}
}