1. Comité Européen de Normalisation (CEN), Eurocode 3, Design of steel structures – Part 1–3: General Rules Supplementary Rules for Cold-formed Members and Sheeting, 2006.
2. American Iron and Steel Institute (AISI), North American Specification for the Design of Cold-formed Steel Structural Members, S100-12, 2012.
3. Crushing strength of thin steel webs, engineering experiment station;Winter,1946
4. Webs for cold-formed steel flexural members; structural behaviour of beam webs subjected to web crippling and a combination of web crippling and bending;Hetrakul,1978
5. Design of Cold-Formed Unlipped Channels Subjected to Web Crippling, Research Report No. R794;Young,1999