Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_2004_18_1-2_a23, author = {Svetlana Topalova}, title = {STS(21) with {Automorphisms} of {Order} 3 with 3 {Fixed} {Points} and 7 {Fixed} {Blocks}}, journal = {Mathematica balkanica}, pages = {215}, publisher = {mathdoc}, volume = {18}, number = {1-2}, year = {2004}, url = {http://geodesic.mathdoc.fr/item/MABA_2004_18_1-2_a23/} }
Svetlana Topalova. STS(21) with Automorphisms of Order 3 with 3 Fixed Points and 7 Fixed Blocks. Mathematica balkanica, Tome 18 (2004) no. 1-2, p. 215. http://geodesic.mathdoc.fr/item/MABA_2004_18_1-2_a23/