(1969). Vol. 23, № 23; Physical Review Letters. 1969.
Lua i Stíl Chicago (17ú heag.)Vol. 23, № 23; Physical Review Letters. 1969, 1969.
Lua MLA (9ú heag.)Vol. 23, № 23; Physical Review Letters. 1969, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.