%0 Journal Article %A Hong-Quan Liu %T Divisor problems of 4 and 3 dimensions %J Acta Arithmetica %D 1995 %P 249-269 %V 73 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-73-3-249-269/ %R 10.4064/aa-73-3-249-269 %G en %F 10_4064_aa_73_3_249_269