摘要： It is well known that for general vibration system, the applied force with article at time t depends not only on its position x(t) and velocity x'(t), but also on the variation of whole process before time t.
王廷辅. A CONDITION OF ASYMPTOTIC BEHAVIOUR OF CERTAIN VIBRATION SYSTEM[J]. 数学物理学报, 1982, 2(3): 347-353.
Wang Tingfu. A CONDITION OF ASYMPTOTIC BEHAVIOUR OF CERTAIN VIBRATION SYSTEM[J]. Acta mathematica scientia,Series A, 1982, 2(3): 347-353.