@article{Mátyás1997,
author = {Mátyás, L.},
title= {Proper econometric specification of the gravity model},
year = {1997},
doi = {10.1111/1467-9701.00074},
URL = {https://doi.org/doi:10.1111/1467-9701.00074},
volume = {20},
number = {3},
pages = {363‒368},
}