1. Matthys S, Taerwe L, Audenaert K. Test on axially loaded concrete columns confined by fiber reinforced polymers sheet wrapping. In: Proc, FRPRCS-4, Baltimore; 1999. p. 217–18.
2. Comparative study of models on confinement of concrete cylinders with fiber reinforced polymer composites;De Lorenzis;ASCE J Compos Construct,2001
3. Shape and ‘gap’ effects on the behavior of variably confined concrete;Harries;Cem Concr Res,2003
4. Lignola GP, Prota A, Manfredi G, Cosenza E. Effective strain in FRP jackets on circular RC columns. In: Proc 4th international conference on FRP composites in civil engineering (CICE2008), Zurich, Switzerland, Paper 2.A.5; 2008.
5. Unified theory for confinement of RC solid and hollow circular column;Lignola;Compos Part B: Eng,2008