@article{DOCMA_2015__S2__a1,
     author = {Qu\'eguiner-Mathieu, Anne and Tignol, Jean-Pierre},
     title = {The {Arason} invariant of orthogonal involutions of degree 12 and 8, and quaternionic subgroups of the {Brauer} group},
     journal = {Documenta mathematica},
     pages = {529--576},
     publisher = {mathdoc},
     volume = {Alexander S. Merkurjev's Sixtieth Birthday},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_2015__S2__a1/}
}