David Rhind. Data access, charging and copyright and their implications for geographical information systems. International Journal of Geographical Information Science, 6(1):13-30, 1992. [doi]
@article{Rhind92, title = {Data access, charging and copyright and their implications for geographical information systems}, author = {David Rhind}, year = {1992}, doi = {10.1080/02693799208901892}, url = {http://dx.doi.org/10.1080/02693799208901892}, researchr = {https://researchr.org/publication/Rhind92}, cites = {0}, citedby = {0}, journal = {International Journal of Geographical Information Science}, volume = {6}, number = {1}, pages = {13-30}, }