@article{JAC_2001__14_2_a3,
     author = {Hiraki, Akira},
     title = {A distance-regular graph with strongly closed subgraphs},
     journal = {Journal of Algebraic Combinatorics},
     pages = {127--131},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2001__14_2_a3/}
}