Cyrillic letters using memoir and texstudio

Question

I have typeset a book in English using memoir, which I find very nice for books. Now I have the Russian translation to the book and it is obviously in Cyrillic. I have tried using babel and different encodings to compile but the letters just show up as questions marks and it won't let me use Cyrillic letters. This is quite important as I would have to “translate” the entire book to Latin letters, which could also lead to many mistakes that I want to avoid. Can anyone help me?

\documentclass[twoside,11pt]{memoir} 
\usepackage[utf8]{inputenc} 
\usepackage[OT2,T1]{fontenc}
\usepackage[russian,english]{babel}

\begin{document}
\selectlanguage{russian}

возвращение евреев в Израиль из диаспоры (рассеяния). На иврите это слово означает «восхождение» и употребляется также при описании пути в Иерусалим, т.к. он расположен на возвышенности

\end{document}

I have an entire structure file for the margin specifications etc. that I won't include in this example. Not sure if this is enough though.

Answer 1

Don't load OT2, that's used for inputting Cyrillic via transliteration from Latin characters.

Rather load T2A (it's not really necessary, but it avoids an annoying warning).

\documentclass[twoside,11pt]{memoir}
\usepackage[T2A,T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[russian,english]{babel}

\begin{document}
\selectlanguage{russian}

возвращение евреев в Израиль из диаспоры (рассеяния).
На иврите это слово означает «восхождение» и употребляется
также при описании пути в Иерусалим, т.к. он расположен на возвышенности

\end{document}