00540naa#a2200169#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200014400102210005400246215001000300608002700310700001900337856001400356EN\\bibl\1434620241202072345.1##a1999-8775##a20161228b2016####ek#y0engy0150####ca0#aRUS##aRU1#aPERIODIC SOLUTIONS PROBLEM OF HETEROGENEOUS STRING FORCED  OSCILLATIONS EQUATION WITH BOUNDARY CONDITION OF THE THIRD TYPEeJournal article1#aBryanskcBryansk State Technical Universityd2016##a8 с.##aJournal article2local#1aRudakovgIgor 4#azh-szf.ru