I Icelandic: by far the best known and most studied Phonetic studies: Stefán Einarsson (1927), Sveinn Bergsveinsson (1941), Magnús Pétursson (1976), Löfqvist & Yoshioka (1981), Pind (1986), Ní Chasaide (1986), Þorsteinn G. Indriðason et al. (1990), Pétur Helgason (2002) Phonological studies: Haugen (1958), Höskuldur Thráinsson (1978), Kristján Árnason (1980, 1986, 2011), Jóhannes G. Jónsson (1994), Ringen (1999), Morén (2001), Gunnar Ólafur Hansson (2003), Gouskova (2004), Lodge (2007) Faroese: Jakobsen (1886), Lockwood (1955), Werner (1963), Zachariasen (1968), Pétur Helgason (2002), Gunnar Ólafur Hansson (2003), Höskuldur Thráinsson et al. (2012), Casserly (2012) Scottish Gaelic: Marstrander (1932), Wagner (1964), Borgstrøm (1974), Ó Baoill (1980), Ó Murchú (1985), Ní Chasaide & Ó Dochartaigh (1984), Ní Chasaide (1986), Bosch (2006), Ó Maolalaigh (2010) The Sámi languages: Engstrand (1987), Sammallahti (1977, 1998), Rießler (2008), Kusmenko (2008), Rießler & Wilbur (2007), Wilbur (2014) Pavel Iosad Norwegian preaspiration FGLS13 5 / 41