@article{10_4064_aa_61_3_265_270,
     author = {Javier Cilleruelo and Antonio C\'ordoba},
     title = {B₂[\ensuremath{\infty}]-sequences of square numbers},
     journal = {Acta Arithmetica},
     pages = {265--270},
     publisher = {mathdoc},
     volume = {61},
     number = {3},
     year = {1992},
     doi = {10.4064/aa-61-3-265-270},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-61-3-265-270/}
}