@article{10_4064_aa128_3_7,
     author = {Ying Zhang},
     title = {Congruence and uniqueness of certain {Markoff} numbers},
     journal = {Acta Arithmetica},
     pages = {295--301},
     publisher = {mathdoc},
     volume = {128},
     number = {3},
     year = {2007},
     doi = {10.4064/aa128-3-7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa128-3-7/}
}