@article{10_4064_aa_12_1_47_54,
     author = {L. Mordell},
     title = {The representation of numbers by some quaternary quadratic forms},
     journal = {Acta Arithmetica},
     pages = {47--54},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {1966},
     doi = {10.4064/aa-12-1-47-54},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-12-1-47-54/}
}