Ersvik, O. (1978). Nonlinear analysis of beam-column structures and influence of imperfections. Swedish Council for Building Research.
Lua i Stíl Chicago (17ú heag.)Ersvik, Olle. Nonlinear Analysis of Beam-column Structures and Influence of Imperfections. Stockholm: Swedish Council for Building Research, 1978.
Lua MLA (8ú heag.)Ersvik, Olle. Nonlinear Analysis of Beam-column Structures and Influence of Imperfections. Swedish Council for Building Research, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.