@article{DA_2000_7_4_a10,
     author = {V. V. Shenmaier},
     title = {Generalization of the concept of the rank function of a~matroid},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {111--125},
     publisher = {mathdoc},
     volume = {7},
     number = {4},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2000_7_4_a10/}
}