@article{SM_2017_208_4_a5,
     author = {A. L. Smirnov and S. S. Yakovenko},
     title = {Construction of a~linear filtration for bundles of rank $2$ on $\mathbf{P}^1_{\mathbb Z}$},
     journal = {Sbornik. Mathematics},
     pages = {568--584},
     publisher = {mathdoc},
     volume = {208},
     number = {4},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2017_208_4_a5/}
}