00562naa#a2200169#i#450# EN\INFRA-M\bibl\15148 20241002140254.3 2500-3321 20161229b2016####ek#y0engy0150####ca RUS RU Professional Self-Development of the Experimenter: Problematic Situation and Experience of Preparation of Teaching and of Benefit to him Journal article Moscow INFRA-M Academic Publishing LLC. 2016 0 с. Journal article local Anikin Valyeriy naukaru.ru