%0 Journal Article %A Yoshiyuki Kitaoka %T A note on representation of positive definite binary quadratic forms by positive definite quadratic forms in 6 variables %J Acta Arithmetica %D 1989 %P 317-322 %V 54 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-54-4-317-322/ %R 10.4064/aa-54-4-317-322 %G en %F 10_4064_aa_54_4_317_322