For citations:
Kotyurgina A.S., Fedorova E.I., Nikolaev V.B., Nikitin Yu.B. Evolution of the Unified State Exam and its Effect on Students’ Mathematical Preparation. The Education and science journal. 2020;22(5):9-36. (In Russ.) https://doi.org/10.17853/1994-5639-2020-5-9-36