For citations:

Naumenko S.V. A School Spelling Dictionary by D.N. Ushakov and Spelling Regulation of 1930-1950 (To the 85th Anniversary of the First Edition). Russian language at school. 2019;80(5):90-99. (In Russ.) https://doi.org/10.30515/0131-6141-2019-80-5-90-99