%0 Journal Article %A Koichi Kawada %T On sums of seven cubes of almost primes %J Acta Arithmetica %D 2005 %P 213-245 %V 117 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa117-3-2/ %R 10.4064/aa117-3-2 %G en %F 10_4064_aa117_3_2