You can limit to French language under the drop down menu for "pages written in." Please note: some free full text, some records with a preview of full text, some merely citations. Look up in Blais and Link+ for Claremont availability.
The Library Search can also be used to find literature and historical sources in Russian or in translation. Use the "Language" and "Location" drop-down menus to limit to language or to a specific location such as Special Collections.
You can browse Russian literature in Honnold-Mudd Multi-Tier Stacks PQ1-PQ3999, with the following breakdown for individual authors and eras:
Honnold/Mudd and Denison Special Collections are treasure houses of primary historical materials for all types of history and almost all periods, many in languages other than English. While some of these materials are in Blais, it is best to visit the Special Collections site and contact Special Collections librarians for more information.
The Claremont Digital Library has a growing collection of historical and contemporary digital content from The Library, The Colleges and beyond. You can search for all Russian language content by selecting "Selected Fields" and choosing the drop down menu for fields (on the right hand side) and typing in the language code "rus"