@article{MM_2004_16_2_a6,
     author = {E. M. Bronshtein and Yu. F. Akhmetova},
     title = {Set-valued characteristics of investments},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {87--92},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_2004_16_2_a6/}
}