%0 Journal Article %A Chen, Kwang-Wu %T An interesting lemma for regular $C$-fractions %J Journal of integer sequences %D 2003 %V 6 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/JIS_2003__6_4_a3/ %G en %F JIS_2003__6_4_a3