@article{Clark1977,
author = {Clark, W.A.V. and Huff, J.O.},
title= {Some empirical tests of duration-of-stay effects in intraurban migration},
year = {1977},
doi = {10.1068/a091357},
journal = {Environment and Planning A},
volume = {9},
number = {12},
pages = {1357−1374},
}