@article{Ng1986,
author = {Ng, Y.-K. },
title= {Social criteria for evaluating population change: an alternative to the Blackorby-Donaldson criterion},
year = {1986},
doi = {10.1016/0047-2727(86)90036-8},
journal = {Journal of Public Economics },
volume = {29},
number = {3},
pages = {375--381},
}