@article{BUMI_2000_8_3B_1_a5,
     author = {Beretta, L. and Tognoli, A.},
     title = {Some remarks about proper real algebraic maps},
     journal = {Bollettino della Unione matematica italiana},
     pages = {117--133},
     publisher = {mathdoc},
     volume = {Ser. 8, 3B},
     number = {1},
     year = {2000},
     zbl = {0964.14046},
     mrnumber = {1070358},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2000_8_3B_1_a5/}
}