@article{10_4064_aa130_2_2,
     author = {Zongduo Dai and Ping Wang and Kunpeng Wang and Xiutao Feng},
     title = {A criterion for periodicity of multi-continued fraction
 expansion of multi-formal {Laurent} series},
     journal = {Acta Arithmetica},
     pages = {127--140},
     publisher = {mathdoc},
     volume = {130},
     number = {2},
     year = {2007},
     doi = {10.4064/aa130-2-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa130-2-2/}
}