@article{AIF_2011__61_2_717_0,
     author = {Ma, Shouhei},
     title = {Decompositions of an {Abelian} surface and quadratic forms},
     journal = {Annales de l'Institut Fourier},
     pages = {717--743},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {61},
     number = {2},
     year = {2011},
     doi = {10.5802/aif.2627},
     zbl = {1231.14036},
     mrnumber = {2895071},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.2627/}
}