@article{52b1a3ccfd1d44a08fca3b0f4f2c7876,
title = "A new indicator of European integration and an application to collaboration in scientific research.",
keywords = "Human geography, Sociale Geografie(SGEO), Consumer Economics: Theory, Economic geography, Planologie(PLAN), Consumer Economics: Empirical Analysis, Geowetenschappen en aanverwante (milieu)wetenschappen",
author = "K. Frenken",
year = "2002",
doi = "10.1080/0953531022000024833",
language = "Undefined/Unknown",
volume = "14",
pages = "345--361",
journal = "Economic Systems Research",
issn = "0953-5314",
publisher = "Routledge",
number = "4",
}