@article{AA_2007_19_2_a7,
     author = {V. V. Makeev},
     title = {Some extremal problems for vector bundles},
     journal = {Algebra i analiz},
     pages = {131--155},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2007_19_2_a7/}
}