@article{10_4064_ap_65_1_55_65,
     author = {Joanna Szczawi\'nska},
     title = {Polynomial set-valued functions},
     journal = {Annales Polonici Mathematici},
     pages = {55--65},
     publisher = {mathdoc},
     volume = {65},
     number = {1},
     year = {1996},
     doi = {10.4064/ap-65-1-55-65},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-65-1-55-65/}
}