1. Elastic instability of flat plates subjected to partial edge loadings;Zetlin;J. Struct. Div. ASCE Proc.,1955
2. 65th and 66th Progress Reports on Light Gauge Steel Beams of Cold-formed Steel;Zetlin,1952
3. Crushing Strength of Thin Steel Webs. Engineering Experiment Station, Bulletin No.35;Winter,1946
4. Upplagstryckets Inverkan p°a Brottlasten Hostrapetsprofilerad pl°at. Examenarbeite i St°albyggnad;Andersson,1973
5. Web Crippling and the Interaction of Bending and Web Crippling of Unreinforced Multi-web Cold-formed Steel Sections;Wing,1981