%0 Journal Article %A Ying Zhang %T Congruence and uniqueness of certain Markoff numbers %J Acta Arithmetica %D 2007 %P 295-301 %V 128 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa128-3-7/ %R 10.4064/aa128-3-7 %G en %F 10_4064_aa128_3_7