@article{10_4153_CMB_1983_034_0,
     author = {Beatson, R. K. and Leviatan, D.},
     title = {On {Comonotone} {Approximation}},
     journal = {Canadian mathematical bulletin},
     pages = {220--224},
     year = {1983},
     volume = {26},
     number = {2},
     doi = {10.4153/CMB-1983-034-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1983-034-0/}
}