%0 Journal Article %A A. Rotkiewicz %T Periodic sequences of pseudoprimes connected with Carmichael numbers and the least period of the function $l^C_x$ %J Acta Arithmetica %D 1999 %P 75-83 %V 91 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-91-1-75-83/ %R 10.4064/aa-91-1-75-83 %G en %F 10_4064_aa_91_1_75_83