00589naa#a2200193#i#450# EN\INFRA-M\bibl\1022 20250412014858.6 1998-0728 20131225b2013####ek#y0engy0150####ca RUS RU Preparing 5–7-Year Old Children to Attending School: The World Around Us and Mathematics Journal article Moscow INFRA-M Academic Publishing LLC. 2013 5 с. Journal article local Rumyantseva Irina Tselishcheva Irina Bolshakova Mariya zh-szf.ru