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3. BS 7777 (1993). Flat-bottomed, vertical, cylindrical storage tanks for low temperature service. British Standards Institution.
4. BS EN14620-1 (2006). Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0oC and -165oC–Part 1: General. British Standards Institution.
5. Cao, Z. (2007). Elasto-plastic stability of reticulated shells. PhD thesis, Harbin Institute of Technology, China. (in Chinese)