@article{Filmer2001,
author = {Filmer, D. and Pritchett, L.},
title= {Estimating weath effects without expenditure data ‒ or tears: An application to educational enrollments in states of India},
year = {2001},
doi = {10.1353/dem.2001.0003},
journal = {Demography },
volume = {38},
number = {1},
pages = {115‒132},
}