@article{JAC_2009__30_3_a0,
     author = {Suzuki, Hiroshi},
     title = {Parallelogram-free distance-regular graphs having completely regular strongly regular subgraphs},
     journal = {Journal of Algebraic Combinatorics},
     pages = {401--413},
     publisher = {mathdoc},
     volume = {30},
     number = {3},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2009__30_3_a0/}
}