General Synthesis and Future Perspectives
in M. Weller et al., The HCCH 2019 Judgments Convention: Cornerstones, Prospects, Outlook, Hart Publishing, Oxford, 2023, 355-382
PIL for a better world: Vision-Reality-Aberration?
in K. Duden (ed.) IPR für eine bessere Welt, Mohr Siebeck, Tübingen, 2022, pp. 179-210.
Private International Law in Support of Sustainable Development – Impulses from Osnabrück
in H. Grothe & P. Mankowski, Festschrift für Christian von Bar zum 70. Geburtstag, 2022, pp. 195-204
Embracing Diversity - The Role of the Hague Conference in the Creation of Universal Instruments
in V. Ruiz Abou-Nigm & M. Noodt Taquela (eds.), Diversity and Integration: Exploring Ways Forward, 2019, 31-46
With/avec/con Ignacio Goicoechea
The Key Role of Judges in the Development of Private International Law
in V. Ruiz Abou-Nigm & M. Noodt Taquela (eds.), Diversity and Integration: Exploring Ways Forward, 2019, pp. 295-309.
At the Cross-roads of Public and Private International law
in C.-J. Cheng (ed.), Collected Courses of the Xiamen Academy of International Law Summer Courses, July 27-31, 2015, Vol. 11, Leiden, 2017, pp. 5-65,
The Earth is one but the world is not: what role for global and regional unification of Private International law?
in Revista Perspectiva Jurídica Universidad Panamericana, 2014, pp.359-373
The Accommodation of Religious Laws in Cross-Border Situations the Contribution of the Hague Conference on Private International Law
in Cuadernos de derecho transnacional, Vol. 2, No. 1, p. 261-267, 2010
Legal Diversity in a Flat, Crowded World : the Role of the Hague Conference
in Revue hellénique de droit international, Vol. 62, p. 495-509, 2009
Bridging Cultural Differences between Western and Religious Legal Systems
in Vriesendorp, D., Nelissen F.A., Wladimiroff M., (eds.), The Hague legal capital? : liber in honorem W.J. Deetman, The Hague, Hague Academic Press, pp.. 15-22, 2008
Report on Intercountry Adoption of Children/ Rapport sur l'adoption d'enfants originaires de l'étranger
in in Hague Conference on Private International Law / Conférence de La Haye de droit international privé, Proceedings of the Seventeenth Session/Actes et documents de la Dix-septième session (1993), Tome II, 1994, pp. 11-119 https://assets.hcch.net/upload/adoption_rpt1990vloon.pdf
Naar een wereldwijd verdrag over adoptie van kinderen uit het buitenland
in Interlandelijke adoptie (Preadvies Thijmgenootschap), (Zwolle: W.E.J. Tjeenk Willink, 1990, pp. 57-68.
The Hague Conventions on Private International Law
in Jacobs F.G. & Roberts, S, The Effect of Treaties in Domestic Law, London, Sweet & Maxwell, 1987, pp. 221-251