@article{NUMA_1979__32_132608,
     author = {J.L. Gout and D Apprato and R. Arcangeli},
     title = {Sur les elements finis rationnels de {Wachspress.}},
     journal = {Numerische Mathematik},
     pages = {247--270},
     publisher = {mathdoc},
     volume = {32},
     year = {1979},
     zbl = {0431.65001},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1979__32_132608/}
}