%0 Journal Article %A Thang Van Pham %A Anh Vinh Le %T Orthogonal systems in vector spaces over finite rings %J The electronic journal of combinatorics %D 2012 %V 19 %N 2 %U http://geodesic.mathdoc.fr/articles/10.37236/2147/ %R 10.37236/2147 %F 10_37236_2147