For citations:

Yarosh A..., Rakhmatullina Yu... Mechanism of formation of the optimal investment portfolio of securities on the Markovits model on the example of shares of the largest oil companies of the Russian Federation. Siberian Financial School. 2021;(1):43-47. (In Russ.) https://doi.org/10.34020/1993-4386-2021-1-43-47