@article{JCA_2002_9_1_JCA_2002_9_1_a6,
     author = {L.-W. Zhang and Z.-Q. Xia and Y. Gao and M.-Z. Wang},
     title = {Star-Kernels and {Star-Differentials} in {Quasidifferential} {Analysis}},
     journal = {Journal of convex analysis},
     pages = {139--158},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {2002},
     url = {http://geodesic.mathdoc.fr/item/JCA_2002_9_1_JCA_2002_9_1_a6/}
}