00476naa#a2200169#i#4500001001900000005001700019011001400036100004100050101000800091102000700099200008500106210004100191215001000232608002700242700002100269856001600290EN\RIOR\bibl\1193920240430014606.2##a2409-6024##a20160625b2016####ek#y0engy0150####ca0#aRUS##aRU1#aCluster approach in the development of Russian education systemeJournal article1#aMoscowcPublishing Center RIORd2016##a5 с.##aJournal article2local#1aGrigorevagAnna 4#ariorpub.com