@article{JCA_2005_12_2_JCA_2005_12_2_a4,
     author = {A. Daniilidis and J. Malick},
     title = {Filling the {Gap} between {Lower-C\protect\textsuperscript{1}} and {Lower-C\protect\textsuperscript{2}} {Functions}},
     journal = {Journal of convex analysis},
     pages = {315--329},
     publisher = {mathdoc},
     volume = {12},
     number = {2},
     year = {2005},
     url = {http://geodesic.mathdoc.fr/item/JCA_2005_12_2_JCA_2005_12_2_a4/}
}