Não informado. (1965). Journal of Differential Equations. Academic Press.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Differential Equations. New York: Academic Press, 1965.
Lua MLA (8ú heag.)Não informado. Journal of Differential Equations. Academic Press, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.