@article{IIGUM_2011_4_3_a3,
     author = {V. A. Baranski and M. Yu. Vyplov and V. P. Il'ev},
     title = {Minimizing modular and supermodular functions on $L$-matroids},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {42--53},
     publisher = {mathdoc},
     volume = {4},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2011_4_3_a3/}
}