%0 Journal Article %A MarĂ­a Icaza %T Sums of squares of integral linear forms %J Acta Arithmetica %D 1996 %P 231-240 %V 74 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-74-3-231-240/ %R 10.4064/aa-74-3-231-240 %G en %F 10_4064_aa_74_3_231_240