@article{MS2_1991__69_1_167168,
     author = {R. B. de de Parra and A.F. Arias},
     title = {On the {Valiron} deficiencies of oriented functions.},
     journal = {Mathematica Scandinavica},
     pages = {31--44},
     publisher = {mathdoc},
     volume = {69},
     number = {1},
     year = {1991},
     zbl = {0748.30025},
     url = {http://geodesic.mathdoc.fr/item/MS2_1991__69_1_167168/}
}