@article{MM_2009_21_1_a4,
     author = {E. M. Bronshtein and E. V. Ahtjamova and N. V. Bulatova},
     title = {Some optimization problems of investment theory},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {46--52},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_2009_21_1_a4/}
}