@article{Levitt2004,
author = {Levitt, P. and Glick Schiller, N.},
title= {Conceptualizing simultaneity: a transnational social field perspective on society},
year = {2004},
doi = {10.1111/j.1747-7379.2004.tb00227.x},
journal = {International Migration Review},
volume = {38},
number = {3},
pages = {1002--1039},
}