@article {Extended2006,
title = {Extended Europe: Patterns of Agglomeration, Migration and Economic Differentials},
year = {2006},
url = {https://www.esri.ie/publications/extended-europe-patterns-of-agglomeration-migration-and-economic-differentials},
author = {Nijkamp, P and Siedschlag, Iulia and Yousf, S},
journal = {Global Regionalization: Core Peripheral Trends},
}