@article{10_4064_aa_77_1_23_56, author = {Georges Rhin and Carlo Viola}, title = {On a permutation group related to \ensuremath{\zeta}(2)}, journal = {Acta Arithmetica}, pages = {23--56}, publisher = {mathdoc}, volume = {77}, number = {1}, year = {1996}, doi = {10.4064/aa-77-1-23-56}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-77-1-23-56/} }