@article {Cross-National1991,
title = {Cross-National Variation in European Patterns of Social Fluidity: The Effects of Agriculture, Hierarchy and Property},
year = {1991},
url = {https://www.esri.ie/publications/cross-national-variation-in-european-patterns-of-social-fluidity-the-effects-of-agriculture-hierarchy-and-property},
author = {Breen, R., and Whelan, C.},
journal = {ESRI Working Paper 27},
}