@article{SJC_2008_2_4_a3,
     author = {Mateva, Zlatka},
     title = {Constructing a {Canonical} form of a {Matrix} in {Several} {Problems} about {Combinatorial} {Designs}},
     journal = {Serdica Journal of Computing},
     pages = {349--368},
     publisher = {mathdoc},
     volume = {2},
     number = {4},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SJC_2008_2_4_a3/}
}