%0 Journal Article %A V. M. Polyakov %T Bundles on $\mathbb{P}^1_\mathbb{Z}$ of rank $3$ and non-degenerate sections of bundles of rank $2$ %J Zapiski Nauchnykh Seminarov POMI %D 2023 %P 135-146 %V 523 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2023_523_a7/ %G ru %F ZNSL_2023_523_a7