@article{Hart1975,
author = {Hart, R.A.},
title= {Interregional economic migration: Some theoretical considerations (Part II)},
year = {1975},
doi = {10.1111/j.1467-9787.1975.tb00932.x},
journal = {Journal of Regional Science},
volume = {15},
number = {3},
pages = {289−305},
}