00585naa#a2200205#i#450# EN\\bibl\4259 20241015163312.2 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. naukaru.ru