Mordechai (Muki) Haklay. Map Calculus in GIS: a proposal and demonstration. International Journal of Geographical Information Science, 18(2):107-125, 2004. [doi]
@article{Haklay04,
title = {Map Calculus in GIS: a proposal and demonstration},
author = {Mordechai (Muki) Haklay},
year = {2004},
url = {http://taylorandfrancis.metapress.com/openurl.asp?genre=article&issn=1365-8816&volume=18&issue=2&spage=107},
researchr = {https://researchr.org/publication/Haklay04},
cites = {0},
citedby = {0},
journal = {International Journal of Geographical Information Science},
volume = {18},
number = {2},
pages = {107-125},
}