@article{10_37236_2147,
     author = {Thang Van Pham and Anh Vinh Le},
     title = {Orthogonal systems in vector spaces over finite rings},
     journal = {The electronic journal of combinatorics},
     year = {2012},
     volume = {19},
     number = {2},
     doi = {10.37236/2147},
     zbl = {1252.05024},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/2147/}
}