TY JOUR TI Management of Professional Development of Teachers by Means of Competitions of Professional Achievements KW competitions of professional achievements KW methodological support KW professional development KW professional deficits KW management JO Scientific Research and Development. Socio-Humanitarian Research and Technology AU Manuzuna, E.B. AU Trubnikova, N.I. AU Vebster, A.D. PY 2023 IS 12 PB INFRA-M Academic Publishing LLC.