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| The Institutionalised and Non-Institutionalised Exemptions from EU Public Procurement Law: Towards a More Coherent Approach? WA Janssen Utrecht Law Review 10 (5), 168-186, 2014 | 22 | 2014 |
| De verbreiding van de uu-uitspraak voor Westgermaansch û in Zuid-Oost-Nederland WAF Janssen Maastricht: Van Aelst, 1941 | 10* | 1941 |
| EU public procurement law & self-organisation W Janssen Eleven International Publishing, 2018 | 8 | 2018 |
| Meaningful public engagement in the context of open science: reflections from early and mid-career academics WPC Boon, JJ de Haan, C Duisterwinkel, L Gould, W Janssen, ... Research for All 6 (1), 2022 | 7 | 2022 |
| Legislating societal value into Dutch public procurement law: symbolism or substance W Janssen, G Bouwman Public Procurement Law Review 2, 91-102, 2020 | 7 | 2020 |
| Charles Utenhove: sa vie et son oeuvre (1536-1600) W Janssen Maastricht: Van Aelst, 1939 | 7 | 1939 |
| Shaping the Social Market Economy After the Lisbon Treaty: How ‘Social’is Public Economic Law? A Gerbrandy, WA Janssen, L Thomsin Utrecht Law Review 15 (2), 32-46, 2019 | 6 | 2019 |
| sa vie et son œuvre (1536-1600) W Janssen, C Utenhove Maastricht, 1939 | 5 | 1939 |
| Mandatory sustainability requirements in EU public procurement law: reflections on a paradigm shift W Janssen, R Caranta Bloomsbury Publishing, 2023 | 4 | 2023 |
| Public Procurement Law and In-House Delivery of Public Services: Improving a Paradox WA Janssen When Private Actors Contribute to Public Interests: A Law and Governance …, 2014 | 4 | 2014 |
| On Competition, Free Movement and Procurement: Irgita's Public Cooperation Conundrum W Janssen, E Olsson Eur. Procurement & Pub. Private Partnership L. Rev. 15, 2, 2020 | 3 | 2020 |
| Swimming against the Tide: The Harmonisation of Self-Organization through Article 12 Directive 2014/24/EU W Janssen Eur. Procurement & Pub. Private Partnership L. Rev. 14, 145, 2019 | 3 | 2019 |
| Regulating the Pre-Procurement Phase: Context and Perspectives WA Janssen International Public Procurement-Innovation and Knowledge Sharing, 221-236, 2015 | 2 | 2015 |
| Centralised procurement in The Netherlands: a mixture of procurement autonomy, decentralisation and diversified collaborative purchasing WA Janssen, MAJ Stuijts Centralising Public Procurement, 201-219, 2021 | 1 | 2021 |
| Sustainability through public procurement: the way forward– M Andhov, R Caranta, T Stoffel, J Grandia, WA Janssen, R Vornicu, ... | 1 | 2020 |
| De implementatie van de inbestedingsdoctrine in de Nederlandse rechtsorde (The Implementation of the In-House Doctrine in the Dutch Legal Order) WA Janssen, A van Onna TA 2015, 134-144, 2015 | 1 | 2015 |
| Maatschappelijk verantwoord aanbesteden: Van een procedurele naar een instrumentele benadering van het aanbestedingsrecht WA Janssen Tijdschrift Aanbestedingsrecht 1, 7-17, 2012 | 1 | 2012 |
| On discretion and sustainability in EU public procurement law WA Janssen Balancing Unity and Diversity in EU Legislation, 175-193, 2024 | | 2024 |
| The European Green Deal and Public Procurement Law: Its extraterritorial reach beyond the EU’s borders E Uysal, WA Janssen Deploying the European Green Deal, 2024 | | 2024 |
