@article{JAC_2006__24_2_a2,
     author = {Hollmann, Henk D.L. and Xiang, Qing},
     title = {Association schemes from the action of ${PGL}(2,q)$ fixing a nonsingular conic in ${PG}(2,q)$},
     journal = {Journal of Algebraic Combinatorics},
     pages = {157--193},
     publisher = {mathdoc},
     volume = {24},
     number = {2},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2006__24_2_a2/}
}