@article{ADM_2008_2_a4,
     author = {Piotr Pikuta},
     title = {Exact values of girth for some graphs $D(k,q)$ and upper bounds of the order of cage},
     journal = {Algebra and discrete mathematics},
     pages = {83--88},
     publisher = {mathdoc},
     number = {2},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2008_2_a4/}
}