[1]
КотоваТ.Н. 2011. The Process of Identification of the Superfluous Condition in Sums by the Second\grade Schoolchildren. Psychology. Journal of the Higher School of Economics. 3, 2 (Feb. 2011), 111-117. DOI:https://doi.org/10.17323/1813-8918-2006-2-111-117.