Christ, J. P. (2010). Geographic concentration and spatial inequality: Two decades of EPO patenting at the level of European micro regions. Univ. Hohenheim.
Chicago-Zitierstil (17. Ausg.)Christ, Julian P. Geographic Concentration and Spatial Inequality: Two Decades of EPO Patenting at the Level of European Micro Regions. Stuttgart-Hohenheim: Univ. Hohenheim, 2010.
MLA-Zitierstil (9. Ausg.)Christ, Julian P. Geographic Concentration and Spatial Inequality: Two Decades of EPO Patenting at the Level of European Micro Regions. Univ. Hohenheim, 2010.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.