The strongly regular (40, 12, 2, 4) graphs.
Spence, E.
The Electronic Journal of Combinatorics [electronic only], Tome 7 (2000), / Harvested from The Electronic Library of Mathematics
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Publié le : 2000-01-01
EUDML-ID : urn:eudml:doc:120390 
@article{01446314,
     title = {The strongly regular (40, 12, 2, 4) graphs.},
     journal = {The Electronic Journal of Combinatorics [electronic only]},
     volume = {7},
     year = {2000},
     zbl = {0940.05072},
     language = {en},
     url = {http://dml.mathdoc.fr/item/01446314}
}

Spence, E. The strongly regular (40, 12, 2, 4) graphs.. The Electronic Journal of Combinatorics [electronic only], Tome 7 (2000) . http://gdmltest.u-ga.fr/item/01446314/