# Article

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Keywords:
neutral equation; delayed argument
Summary:
The aim of this paper is to present sufficient conditions for all bounded solutions of the second order neutral differential equation $\big (x(t)-px(t-\tau )\big )^{\prime \prime }- q(t)x\big (\sigma (t)\big )=0$ to be oscillatory and to improve some existing results. The main results are based on the comparison principles.
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