@article{10_4064_sm171_2_2,
     author = {Allan Pinkus and Dan Wulbert},
     title = {Extending $n$-convex functions},
     journal = {Studia Mathematica},
     pages = {125--152},
     publisher = {mathdoc},
     volume = {171},
     number = {2},
     year = {2005},
     doi = {10.4064/sm171-2-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm171-2-2/}
}