@article{10_4153_CMB_2001_022_2,
     author = {Marshall, M.},
     title = {Extending the {Archimedean} {Positivstellensatz} to the {Non-Compact} {Case}},
     journal = {Canadian mathematical bulletin},
     pages = {223--230},
     year = {2001},
     volume = {44},
     number = {2},
     doi = {10.4153/CMB-2001-022-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2001-022-2/}
}