Eckardt, R. (2013). Beyond 'Any' and 'Ever': New explorations in negative polarity sensitivity. De Gruyter.
Lua i Stíl Chicago (17ú heag.)Eckardt, Regine. Beyond 'Any' and 'Ever': New Explorations in Negative Polarity Sensitivity. Berlin: De Gruyter, 2013.
Lua MLA (9ú heag.)Eckardt, Regine. Beyond 'Any' and 'Ever': New Explorations in Negative Polarity Sensitivity. De Gruyter, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.