@article{10_4064_aa_59_3_291_307,
     author = {Ajai Choudhry},
     title = {Symmetric {Diophantine} systems},
     journal = {Acta Arithmetica},
     pages = {291--307},
     publisher = {mathdoc},
     volume = {59},
     number = {3},
     year = {1991},
     doi = {10.4064/aa-59-3-291-307},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-59-3-291-307/}
}