00638naa#a2200217#i#450# EN\\bibl\4259 /en/manage/index 20250410200708.4 1992-5980 20141231b2014####ek#y0engy0150####ca ENG RU 1/3 SUBHARMONIC RESPONSE OF DUFFING OSCILLATOR UNDER PERIODIC AND RANDOM EXCITATIONS Journal article rostov on don Don state technical University 2014 8 с. Journal article local Hao D Anh N Zakovorotnyy Vilor Chiem N. test.editorum.ru /en/manage/index