@article{SEMR_2010_7_a16,
     author = {A. A. Tokbaeva},
     title = {Strongly regular graphs with parameters $(243,66,9,21)$ is not edge symmetric},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {155--161},
     publisher = {mathdoc},
     volume = {7},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2010_7_a16/}
}