Markku Filppula is Professor of English at the University of Joensuu and a member of the Finnish Academy of Science and Letters. He is the author of The Grammar of Irish English: Language in Hibernian Style (1999), co-author of English and Celtic in Contact (2008), co-editor of The Celtic Roots of English (2002) and Dialects Across Borders (2005).
Juhani Klemola is Professor of English at the University of Tampere. He was awarded his PhD by the University of Essex in 1996. He is co-author of English and Celtic in Contact (2008), co-editor of Speech Past and Present: Studies in English Dialectology in Memory of Ossi Ihalainen (1996), The Celtic Roots of English (2002), Dialects Across Borders (2005), and Types of Variation (2006).
Heli Paulasto is Researcher in English Language at the University of Joensuu, where she was awarded her PhD in 2006. She is author of Welsh English Syntax: Contact and Variation (2006), co-author of English and Celtic in Contact (2008), and co-editor of The Celtic Roots of English (2002).