Olhoff, N. (1978). Optimal design against structural vibration and instability. Technical University of Denmark.
Lua i Stíl Chicago (17ú heag.)Olhoff, Niels. Optimal Design Against Structural Vibration and Instability. Lyngby [Denmark]: Technical University of Denmark, 1978.
Lua MLA (8ú heag.)Olhoff, Niels. Optimal Design Against Structural Vibration and Instability. Technical University of Denmark, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.