Christiansson, P. (1976). Probabilistic methods for calculation of load spectra and loadeffect spectra for highway bridges. Lund Institute of Technology.
Lua i Stíl Chicago (17ú heag.)Christiansson, Per. Probabilistic Methods for Calculation of Load Spectra and Loadeffect Spectra for Highway Bridges. Lund, Sweden: Lund Institute of Technology, 1976.
Lua MLA (8ú heag.)Christiansson, Per. Probabilistic Methods for Calculation of Load Spectra and Loadeffect Spectra for Highway Bridges. Lund Institute of Technology, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.