@article{Prados de la Escosura2000,
author = {Prados de la Escosura, L.},
title= {International comparisons of real product, 1820−1990: An alternative data set},
year = {2000},
doi = {10.1006/exeh.1999.0731},
journal = {Explorations in Economic History},
volume = {37},
number = {1},
pages = {1--41},
}