@article{JAC_2012__36_4_a5,
     author = {Morier-Genoud, Sophie},
     title = {Arithmetics of 2-friezes},
     journal = {Journal of Algebraic Combinatorics},
     pages = {515--539},
     publisher = {mathdoc},
     volume = {36},
     number = {4},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2012__36_4_a5/}
}