Barklund, J. (1990). Parallel unification. UPMAIL, Computing Science Dept., Uppsala University.
Lua i Stíl Chicago (17ú heag.)Barklund, Jonas. Parallel Unification. Uppsala: UPMAIL, Computing Science Dept., Uppsala University, 1990.
Lua MLA (8ú heag.)Barklund, Jonas. Parallel Unification. UPMAIL, Computing Science Dept., Uppsala University, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.