For citations:
Arutiunova E.V., Beshenkova E.V., Ivanova O.E. Root with Alternation of -ravn-/-rovn- (From Materials of the Academic Description of Russian Spelling). Russian language at school. 2020;81(6):90-96. (In Russ.) https://doi.org/10.30515/0131-6141-2020-81-6-90-96
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