%0 Journal Article %T K.N. Kornilov on methodological problems of child psychology (140th anniversary before birth) %A Uruntaeva, G.A. %K pre-school education, child psychology, indicators and factors of mental development, principles and methods of studying a child %J Journal of Pedagogical Studies %D 2019 %N 4 %P 11 %I INFRA-M Academic Publishing LLC.