@article{AFST_2014_6_23_5_967_0, author = {Jouni Parkkonen and Fr\'ed\'eric Paulin}, title = {On the arithmetic of cross-ratios and generalised {Mertens{\textquoteright}} formulas}, journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques}, pages = {967--1022}, publisher = {Universit\'e Paul Sabatier, Toulouse}, volume = {Ser. 6, 23}, number = {5}, year = {2014}, doi = {10.5802/afst.1433}, mrnumber = {3294599}, language = {en}, url = {https://afst.centre-mersenne.org/articles/10.5802/afst.1433/} }