%0 Journal Article %A Donald Robinson %T Iteration of the modular period of a second order linear recurrent sequence %J Acta Arithmetica %D 1972 %P 249-256 %V 22 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-22-3-249-256/ %R 10.4064/aa-22-3-249-256 %G en %F 10_4064_aa_22_3_249_256