@article{MAN_1989__284_4_164540,
     author = {Chris Impens},
     title = {Real functions as traces of {Infinte} polynomials.},
     journal = {Mathematische Annalen},
     pages = {63--74},
     publisher = {mathdoc},
     volume = {284},
     number = {4},
     year = {1989},
     zbl = {0666.26012},
     url = {http://geodesic.mathdoc.fr/item/MAN_1989__284_4_164540/}
}