The Netherlands ∙ Modification of Public Contracts in the Netherlands journal article Jan M. Hebly, Sander van den Boogaart European Procurement & Public Private Partnership Law Review, Volume 12 (2017), Issue 2, Page 206 - 210
Estimated Value vs Final Contract Value in Works Public Procurement – What Causes the Discrepancy? Marko Turudić, Melko Dragojević