**FIL ... Filppula, Markku. 1986. Some aspects of Hiberno-English in a functional sentence perspective. University of Juensuu Publications in the Humanities, University of Juensuu. Filppula, Markku. 1991. "Subordinating _and_ in Hiberno-English syntax: Irish or English origin?", in Language contact in the British Isles, ed. S. Ureland & G. Broderick, pp. 617-31. Linguistische Arbeiten. Tuebingen: Niemeyer. Filppula, Markku. 1996. "Investigating the origins of Hiberno-English perfects: the case of 'PIT'", in Speech past and present, ed. Juhani Klemola, Merja Kytoe & Matti Rissanen, 35-55. Frankfurt: Peter Lang. Filppula, Markku. 1999. The Grammar of Irish English: Language in Hibernian Style. London: Routledge. Filppula, Markku, J. Klemola, & H. Pitkanen (eds.) 2007. English and Celtic in Contact. Routledge. Filppula, Markku. 2008. "The Celtic Hypothesis hasn't gone away: New perspectives on old Debates", in English Historical Linguistics 2006, III: Geo-Historical Variation in English, ed. Marina Dossena, Richard Dury, & Maurizio Gotti, pp. 153-70. John Benjamins. Filppula, Markku, Juhani Klemola. 2009. "The rise of it-clefting in English: areal-typological and contact-linguistic considerations". English Language and Linguistics 13: 267-93. Filppula, Markku, Juhani Klemola, & Heli Paulasto (eds.) 2009. Vernacular Universals and Langauge Contacts: Evidence from Varieties of English and Beyond. Routledge.