Não informado. (1957). Archive for Rational Mechanics and Analysis. Springer Verlag.
Lua i Stíl Chicago (17ú heag.)Não informado. Archive for Rational Mechanics and Analysis. Berlin: Springer Verlag, 1957.
Lua MLA (8ú heag.)Não informado. Archive for Rational Mechanics and Analysis. Springer Verlag, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.