00498naa#a2200169#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200009500102210005400197215001000251608002700261700001900288856002100307EN\\bibl\1422220240825162431.7##a1999-8775##a20150930b2015####ek#y0engy0150####ca0#aRUS##aRU1#aPeriodic vibrations of nongomogeneous  string with clamped and free ends.eJournal article1#aBryanskcBryansk State Technical Universityd2015##a9 с.##aJournal article2local#1aRudakovgIgor 4#abstu.editorum.ru