中国科学院数学与系统科学研究院期刊网
THE BOLINDEDNESS OF SOLUTIONS OF A NONLINEAR FUNCTIONIAL DIFFIERENTIAL EQLJATliON OF SECOND ORDER
Feng You-he
Acta Mathematicae Applicatae Sinica . 1989, (2): 156 -163 .  DOI: 10.12387/C1989018