@article{NUMA_1980__35_186293,
     author = {J.C. Nedelec},
     title = {Mixed {Finite} {Elements} in {IR3} .},
     journal = {Numerische Mathematik},
     pages = {315--342},
     publisher = {mathdoc},
     volume = {35},
     year = {1980},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1980__35_186293/}
}