John J. Dinkel, Danny Wong. External Zones in Trip Distribution Models: Characterization and Solvability. Transportation Science, 18(3):253-266, 1984. [doi]
@article{DinkelW84-0,
title = {External Zones in Trip Distribution Models: Characterization and Solvability},
author = {John J. Dinkel and Danny Wong},
year = {1984},
doi = {10.1287/trsc.18.3.253},
url = {http://dx.doi.org/10.1287/trsc.18.3.253},
researchr = {https://researchr.org/publication/DinkelW84-0},
cites = {0},
citedby = {0},
journal = {Transportation Science},
volume = {18},
number = {3},
pages = {253-266},
}