A new, revised and enlarged edition of the Encyclopedia of Romantic Nationalism in Europe has appeared in 2022 with Amsterdam University Press.
‘Heart to Heart: The Power of Lyrical Bonding in Romantic Nationalism’, Interlitteraria 28.1 (2023): 8-19
‘Quixotic? Not Quite: The Context, Agenda and Legacy of Macronational Movements′, in Nordic Experiences in Pan-nationalisms: A Reappraisal and Comparison, 1840–1940, ed. Ruth Hemstad & Peter Stadius (London: Routledge, 2023), 19-34.
‘The Rise of the Charismatic Nation: Romantic and Risorgimento Nationalism, Europe 1880–1914’, in The Cambridge History of Nationhood and Nationalism, ed. Cathie Carmichael, Matthew D’Auria & Aviel Roshwald (Cambridge UP, 2023) 2: 231-255
‘Romantic Nationalisms’, in The Cambridge History of European Romantic Literature, ed. Patrick Vincent (Cambridge UP, 2023), 352-374
‘Beginning with Culture: A Certain Idea of Europe’, in The Cambridge History of the European Union, ed. Mathieu Segers & Steven Van Hecke (Cambridge UP, 2023): 2: 561-590.
‘Enmity, Identity, Discourse: Imagology and the State’, in New Perspectives on Imagology, ed. Katharina Edtstadler, Sandra Folie & Gianna Zocco (Leiden: Brill, 2022), 49-69.
‘Honour and Violence: Mediterranean Exoticism and Masculinity’, in European Modernity and the Passionate South: Gender and Nation in Spain and Italy in the Long Nineteenth Century, ed. Xavier Andreu-Muralles & Mónica Bolufer-Peruga (Leiden: Brill, 2023), 92-107.
“Language or Dialect? A Crux in the History of Central European Nation-Building”, in Languages and Nationalism Instead of Empires, ed. Motoki Nomachi & Tomasz Kamusella (London: Routledge), 10-23.
2022 Encyclopedia of Romantic Nationalism in Europe (online as web resource at ernie.uva.nl; book publication 2nd ed. 2 vols., Amsterdam: Amsterdam University Press)
2021 “Cultural mobility and political mobilization: Transnational dynamics, national action”, in The First World War and the nationality question in Europe, ed. Xosé Manoel Núñez Seixas (Leiden: Brill, 2021), 17-36.
2021 “The camp and the home: Europe as myth and metaphor”, in National stereotyping, identity politics, European crises, ed. J. Barkhoff & J. Leerssen (Leiden: Brill), 125-141.
2021 World Fairs and the global moulding of national identities: International Exhibitions as cultural platforms, 1851–1958, ed. with Eric Storm (Leiden: Brill)
2017 “The never-ending stream: Cultural mobilization over the Rhine”, in The Rhine: National tensions, romantic visions, ed. M. Beller & J. Leerssen (Leiden: Brill), 224-261.
2016 “Cuchulain in the General Post Office: Gaelic Revival, Irish Rising”, Journal of the British Academy, 4: 137-168.
2015 "The nation and the city: Urban festivals and cultural mobilization", Nations and nationalism, 21.1: 2-20.
2015 “De Limburgse identiteit”, in Limburg: Een geschiedenis, ed. P. Tummers et al (Maastricht: LGOG), 3: 303-322.
2014 Commemorating writers in 19th-century Europe; Nation-building and centenary fever, ed. with A. Rigney (Basingstoke: Palgrave Macmillan)
2014 "Romanticism, music, nationalism", Nations and nationalism, 20.4: 606-627
2013 "Notes toward a definition of Romantic Nationalism", Romantik: Journal for the study of Romanticisms 2: 9-36
2011 Spiegelpaleis Europa: Europese cultuur als mythe en beeldvorming (Nijmegen: Vantilt; 3rd ed. 2015)
2006 De bronnen van het vaderland: Taal, literatuur en de afbakening van Nederland, 1806-1892 (Nijmegen: Vantilt; 2nd ed. 2011)
2006 National thought in Europe: A cultural history (Amsterdam UP; 3rd ed. 2018; Catalan trl. Valencia: Afers, 2019)
1996 Remembrance and imagination. Patterns in the historical and literary representation of Ireland in the nineteenth century (Cork UP)
1986 Mere Irish and Fíor-Ghael. Studies in the idea of Irish nationality, its development and literary expression prior to the nineteenth century (Amsterdam/Philadelphia: John Benjamins; 2nd ed. Cork UP, 1996)