%0 Journal Article %A Guangshi Lü %T Gauss's three squares theorem with almost prime variables %J Acta Arithmetica %D 2007 %P 391-399 %V 128 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa128-4-7/ %R 10.4064/aa128-4-7 %G en %F 10_4064_aa128_4_7