A new oscillation criterion is given for the equation
x
(
t
)
+
p
(
t
)
x
′
(
t
)
+
q
(
t
)
x
(
t
)
=
0
x\left ( t \right ) + p\left ( t \right )x’\left ( t \right ) + q\left ( t \right )x\left ( t \right ) = 0
,
t
∈
[
t
o
,
∞
)
t \in [{t_o},\infty )
, where
p
(
t
)
p\left ( t \right )
and
q
(
t
)
q\left ( t \right )
are allowed to change sign on
[
t
0
,
∞
)
[{t_0},\infty )
.