@article{NUMA_1993__64_2_133694,
     author = {J.C. Archer and E. Le Gruyer},
     title = {Two shape preserving {Lagrange} ...-interpolants.},
     journal = {Numerische Mathematik},
     pages = {1--12},
     publisher = {mathdoc},
     volume = {64},
     number = {2},
     year = {1993},
     zbl = {0804.65011},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1993__64_2_133694/}
}