For citations:
Naumenko S.V. Orthographic Memorandum of D.N. Ushakov. Russian language at school. 2018;79(1):57-64. (In Russ.) https://doi.org/10.30515/0131-6141-2018-79-1-57-64
Naumenko S.V. Orthographic Memorandum of D.N. Ushakov. Russian language at school. 2018;79(1):57-64. (In Russ.) https://doi.org/10.30515/0131-6141-2018-79-1-57-64