%0 Journal Article %A Bjorn Poonen %T Multivariable polynomial injections on rational numbers %J Acta Arithmetica %D 2010 %P 123-127 %V 145 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa145-2-2/ %R 10.4064/aa145-2-2 %G en %F 10_4064_aa145_2_2