@article{VTPMK_2021_1_a3,
     author = {O. I. Sidorova and L. G. Perevalova and M. S. Voevodina},
     title = {Comparative analysis of two portfolio construction methods},
     journal = {Vestnik Tverskogo gosudarstvennogo universiteta. Seri\^a Prikladna\^a matematika},
     pages = {48--58},
     publisher = {mathdoc},
     number = {1},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTPMK_2021_1_a3/}
}