Não informado. (1957). Journal of Mathematics and Mechanics. Indiana University, Graduate Institute for Applied Mathematics.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Mathematics and Mechanics. Bloomington, Ind: Indiana University, Graduate Institute for Applied Mathematics, 1957.
Lua MLA (8ú heag.)Não informado. Journal of Mathematics and Mechanics. Indiana University, Graduate Institute for Applied Mathematics, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.