. . "Kunstsprache." . . "Linguistics." . . "Langages formels." . . "Kunsttalen" . . "Umetni jeziki." . . "Tote Sprache." . . "Jezikoslovje." . . "Uitstervende talen" . . . . . . . . . . . "Aufsatzsammlung" . . . . . . . . . . . "From Elvish to Klingon exploring invented languages" . . "From Elvish to Klingon : exploring invented languages" . "From Elvish to Klingon : exploring invented languages"@en . . . . .