@article{JAC_2009__29_4_a4,
     author = {Hanaki, Akihide and Ponomarenko, Ilia},
     title = {A modular absolute bound condition for primitive association schemes},
     journal = {Journal of Algebraic Combinatorics},
     pages = {447--456},
     publisher = {mathdoc},
     volume = {29},
     number = {4},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2009__29_4_a4/}
}