@article{SM_2023_214_6_a2, author = {A. V. Zaitsev}, title = {Forms of {del~Pezzo} surfaces of degree~$5$ and~$6$}, journal = {Sbornik. Mathematics}, pages = {816--831}, publisher = {mathdoc}, volume = {214}, number = {6}, year = {2023}, language = {en}, url = {http://geodesic.mathdoc.fr/item/SM_2023_214_6_a2/} }