@article{10_4064_ap_51_1_89_97,
     author = {J. Bochnak and W. Kucharz},
     title = {On polynomial mappings into spheres},
     journal = {Annales Polonici Mathematici},
     pages = {89--97},
     publisher = {mathdoc},
     volume = {51},
     number = {1},
     year = {1990},
     doi = {10.4064/ap-51-1-89-97},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-51-1-89-97/}
}