@article{GDZPPN002352826, title = {Perfect Codes in Antipodal Distance-Transitive Graphs.}, journal = {Mathematica Scandinavica}, volume = {34}, year = {1974}, pages = {29-37}, zbl = {0295.94016}, url = {http://dml.mathdoc.fr/item/GDZPPN002352826} }
Heden, Olof. Perfect Codes in Antipodal Distance-Transitive Graphs.. Mathematica Scandinavica, Tome 34 (1974) pp. 29-37. http://gdmltest.u-ga.fr/item/GDZPPN002352826/