Association Journal of CSIAM
Supervised by Ministry of Education of PRC
Sponsored by Xi'an Jiaotong University
ISSN 1005-3085  CN 61-1269/O1
Chinese Journal of Engineering Mathematics
Existence of Periodic Solution for Semi-linear Second-order Differential Equations
ZHOU Tong-fan
Chinese Journal of Engineering Mathematics . 2015, (5): 690 -696 .  DOI: 10.3969/j.issn.1005-3085.2015.05.007