LDR 00549naa#a2200181#i#450# 001 EN\\bibl\68729 005 20241122161459.5 011 ## _a2307-7476 100 ## _a20170625b2017####ek#y0engy0150####ca 101 0# _aRUS 102 ## _aRU 200 1# _aMECHANICS OF OSCILLATIONS IN DIFFERENTIAL EQUATIONS _eJournal article 210 1# _aSaint-Petersburg _cSaint-Petersburg University of State Fire Service of Emercom of Russia _d2017 215 ## _a3 с. 608 ## _aJournal article _2local 700 #1 _aMoroz _gN A 700 #1 _aShiroukhov _gA V 856 4# _ajournals.igps.ru _u