@article{10_4064_aa108_3_5,
     author = {G. Kuba},
     title = {On the distribution of squares of integral {Cayley} numbers},
     journal = {Acta Arithmetica},
     pages = {253--265},
     publisher = {mathdoc},
     volume = {108},
     number = {3},
     year = {2003},
     doi = {10.4064/aa108-3-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa108-3-5/}
}