Não informado. Annals of Discrete Mathematics. North Holland Publishing.
Lua i Stíl Chicago (17ú heag.)Não informado. Annals of Discrete Mathematics. Amsterdam: North Holland Publishing.
Lua MLA (8ú heag.)Não informado. Annals of Discrete Mathematics. North Holland Publishing.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.