00506naa#a2200169#i#4500001002100000005001700021011001400038100004100052101000800093102000700101200009800108210005100206215001000257608002700267700002800294856001400322EN\INFRA-M\bibl\205720260512134214.2##a1998-0728##a20140417b2014####ek#y0engy0150####ca0#aRUS##aRU1#aExercises and Didactic Games for Mental Development of Junior SchoolchildreneJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2014##a4 с.##aJournal article2local#1aSavostyanovgAleksandr 4#azh-szf.ru