Daniel A. Griffith, Manfred M. Fischer. Constrained variants of the gravity model and spatial dependence: model specification and estimation issues. Journal of Geographical Systems, 15(3):291-317, 2013. [doi]
@article{GriffithF13,
title = {Constrained variants of the gravity model and spatial dependence: model specification and estimation issues},
author = {Daniel A. Griffith and Manfred M. Fischer},
year = {2013},
doi = {10.1007/s10109-013-0182-7},
url = {http://dx.doi.org/10.1007/s10109-013-0182-7},
researchr = {https://researchr.org/publication/GriffithF13},
cites = {0},
citedby = {0},
journal = {Journal of Geographical Systems},
volume = {15},
number = {3},
pages = {291-317},
}