J. Alison Noble. Images as functions and sets. Image Vision Comput., 10(1):19-29, 1992. [doi]
@article{Noble92:0, title = {Images as functions and sets}, author = {J. Alison Noble}, year = {1992}, doi = {10.1016/0262-8856(92)90080-M}, url = {http://dx.doi.org/10.1016/0262-8856(92)90080-M}, researchr = {https://researchr.org/publication/Noble92%3A0}, cites = {0}, citedby = {0}, journal = {Image Vision Comput.}, volume = {10}, number = {1}, pages = {19-29}, }