confinement
1981 / Rubik's cube and a model of quark confinement / Solomon W. Golomb / American Journal of Physics 49 (1981) p. 1030 [doi]
1995 / [Search and Discovery] Supersymmetric QCD Sheds Light on Quark Confinement and the Topology of 4-Manifolds / Graham P. Collins / Physics Today 48 (1995) p. 17 [doi]