@article{JCA_2002_9_1_JCA_2002_9_1_a13,
     author = {K. Zhang},
     title = {An {Elementary} {Derivation} of the {Generalized} {Kohn-Strang} {Relaxation} {Formulae}},
     journal = {Journal of convex analysis},
     pages = {269--286},
     year = {2002},
     volume = {9},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JCA_2002_9_1_JCA_2002_9_1_a13/}
}