@article{10_4064_aa157_2_3,
     author = {Shaun Cooper and Heung Yeung Lam and Dongxi Ye},
     title = {Representations of squares by
 certain quinary quadratic forms},
     journal = {Acta Arithmetica},
     pages = {147--168},
     publisher = {mathdoc},
     volume = {157},
     number = {2},
     year = {2013},
     doi = {10.4064/aa157-2-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa157-2-3/}
}