Few things to note:

- From the Math Reviews:

MR0046598 (13,760a) Reviewed
Perfect, Hazel, On positive stochastic matrices with real characteristic roots. Proc. Cambridge Philos. Soc. 48, (1952). 271–276.

*The author, continuing the investigations of Suleĭmanova [Doklady Akad. Nauk SSSR (N.S.) 66, 343–345 (1949); MR0030496], finds that in order that the real numbers 1,a,b, with |a|,|b|<1, shall be characteristic roots of a positive stochastic matrix of order 3 with three linearly independent characteristic vectors, it is necessary and sufficient that 1+a+b be positive. The corresponding condition for fourth order matrices is sufficient, but is shown by a counterexample not to be necessary, contrary to Suleĭmanova's assertion.*

The last sentence suggests that you should be very cautious citing/using results of Suleĭmanova's papers.

AMS started its translations of Soviet Math. Doklady in 1960, so that is of no use for you.

Suleimanova published a detailed version of her Doklady paper in

Suleĭmanova, H. R.
The question of a necessary and sufficient condition for the existence of a stochastic matrix with prescribed characteristic numbers. (Russian)
Trudy Vsesojuz. Zaočn. Ènerget. Inst. Vyp. 28 1965 33–49.

which is an very obscure publication.

- If you feel like you have to cite a particular result from Suleĭmanova's paper, you should first find out if this result is correct; for instance, check (using mathreviews) if this particular result was reproven later on in a paper you can trust, or prove/disprove the results yourself. If that does not work, you have no option but to get access to her papers (the interlibrary loan would help if you are in the US) and then ask somebody to translate for you.

Стохастические матрицы с вещественными собственными значениями, Докл. АН СССР. 1949. - V. 66.-Р. 343-345. $\endgroup$ – Rodrigo de Azevedo Dec 13 '16 at 6:30