For citations:
Lomasko P.S., Simonova A.L., Barkhatova D.A., Khegay L.B. Designing a Platform for Additional Subject Training of Schoolchildren Based on Professional Requests of Teachers. Open Education. 2021;25(5):15-30. (In Russ.) https://doi.org/10.21686/10.21686/1818-4243-2021-5-15-30