MR1341737
Omari, Pierpaolo and Ye, Wei Yin
Pierpaolo OMARI and Weiyin YE
Periodic solutions of a second order ordinary differential equation with an effective damping
Funkcialaj Ekvacioj. Serio Internacia
38
1995
71--80
http://fe.math.kobe-u.ac.jp/FE/Free/vol38/fe38-1-6.pdf
http://fe.math.kobe-u.ac.jp/FE/FE_pdf_with_bookmark/FE35-40-en_KML/fe38-071-080/fe38-071-080.pdf
http://www.ams.org/mathscinet-getitem?mr=MR1341737
fe38-071-080
1995
Periodic Solutions of a Second Order Ordinary Differential Equation with an Effective Damping
OMARI, Pierpaolo; YE, Weiyin
OMARI, Pierpaolo; YE, Weiyin
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