Kauers, M., & Paule, P. (2011). The concrete tetrahedron: Symbolic sums, recurrence equations, generating functions, asymptotic estimates. Springer.
Lua i Stíl Chicago (17ú heag.)Kauers, Manuel, agus Peter Paule. The Concrete Tetrahedron: Symbolic Sums, Recurrence Equations, Generating Functions, Asymptotic Estimates. Wein ;New York: Springer, 2011.
Lua MLA (9ú heag.)Kauers, Manuel, agus Peter Paule. The Concrete Tetrahedron: Symbolic Sums, Recurrence Equations, Generating Functions, Asymptotic Estimates. Springer, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.