1. SIA 261. Swiss standard. Einwirkungen auf Tragwerke. Schweizerischer Ingenieur - und Architektenverein, Zurich; 1998.
2. EN 12524:2000D. European standard. Building materials and products – hygrothermal properties – tabulated design values. European Committee for Standardisation: Brussels; 2000.
3. DIN 1055-5. German standard. Actions on structures. Part 5. Snowloads and ice loads. Deutsches Institut fnr Normung e.V.: Berlin; 2005.
4. ISO 15614-1. ISO Standard. Specification and qualification of welding procedures for metallic materials – welding procedure test. Part 1. Arc and gas welding of steels and arc welding of nickel and nickel alloys. ISO International Organization for Standardization; 2004.
5. Deformation and fracture mechanics of engineering analysis;Hertzberg,1998