@article{10_4064_aa_26_1_1_9,
     author = {Philip Leonard and Kenneth Williams},
     title = {Forms representable by integral binary quadratic forms},
     journal = {Acta Arithmetica},
     pages = {1--9},
     publisher = {mathdoc},
     volume = {26},
     number = {1},
     year = {1974},
     doi = {10.4064/aa-26-1-1-9},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-26-1-1-9/}
}