%0 Journal Article %A Paul Ponomarev %T Arithmetic of quaternary quadratic forms %J Acta Arithmetica %D 1976 %P 1-48 %V 29 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-29-1-1-48/ %R 10.4064/aa-29-1-1-48 %G en %F 10_4064_aa_29_1_1_48