@article{Esteban2007,
author = {Esteban, J. and Gradín, C. and Ray, D.},
title= {An extension of a measure of polarization with an application to the income distribution of five OECD countries},
year = {2007},
doi = {10.1007/s10888-006-9032-x},
journal = {Journal of Economic Inequalities},
volume = {5},
number = {1},
pages = {1--19},
}