1. For a review, see C.T. Hill and E.H. Simmons, Strong dynamics and electroweak symmetry breaking, Phys. Rept. 381 (2003) 235 [Erratum ibid. 390 (2004) 553] [ hep-ph/0203079 ] [ SPIRES ].
2. G. Burdman, B.A. Dobrescu and E. Ponton, Resonances from two universal extra dimensions, Phys. Rev. D 74 (2006) 075008 [ hep-ph/0601186 ] [ SPIRES ].
3. C. Kilic, T. Okui and R. Sundrum, Colored Resonances at the Tevatron: Phenomenology and Discovery Potential in Multijets, JHEP 07 (2008) 038 [ arXiv:0802.2568 ] [ SPIRES ].
4. C. Kilic, T. Okui and R. Sundrum, Vectorlike Confinement at the LHC, JHEP 02 (2010) 018 [ arXiv:0906.0577 ] [ SPIRES ].
5. Y. Bai and R.J. Hill, Weakly Interacting Stable Pions, Phys. Rev. D 82 (2010) 111701 [ arXiv:1005.0008 ] [ SPIRES ].