@article{JRAM_1993__444_153571,
     author = {R. Sujatha and V.V. Nikulin},
     title = {On {Brauer} groups of real {Enriques} surfaces.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {115--154},
     publisher = {mathdoc},
     volume = {444},
     year = {1993},
     zbl = {0805.14021},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1993__444_153571/}
}