00815naa#a2200217#i#450# EN\INFRA-M\bibl\20849 20240809091956.5 1998-0744 20180522b2018####ek#y0engy0150####ca RUS RU The development of Professional Flexibility for Teachers of Supplementary Education in the View of Introduction of New Professional Standard Journal article Moscow INFRA-M Academic Publishing LLC. 2018 5 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 RUS Malahova N. N. Sinenko V. Ya. Pohorukov Oleg Yur'evich Slavgorodskaya Marina Vladimirovna naukaru.ru