@article{10_4064_aa_25_1_1_5,
     author = {R. Cook},
     title = {Simultaneous quadratic equations {II}},
     journal = {Acta Arithmetica},
     pages = {1--5},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {1973},
     doi = {10.4064/aa-25-1-1-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-25-1-1-5/}
}