@article{RM_2016_71_5_a5,
     author = {V. P. Platonov and M. M. Petrunin},
     title = {$S${-Units} and periodicity in quadratic function fields},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {973--975},
     publisher = {mathdoc},
     volume = {71},
     number = {5},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2016_71_5_a5/}
}