Ji-Zhou, Z. (1995). On The Periodic Solutions for the Lienard Equation. (e3036). Scientia Iranica, 1(4), e3036

Ji-Zhou, Z. "On The Periodic Solutions for the Lienard Equation" .e3036 , Scientia Iranica, 1, 4, 1995, e3036.

Ji-Zhou Z. (1995). 'On The Periodic Solutions for the Lienard Equation', Scientia Iranica, 1(4), e3036.

Z. Ji-Zhou, "On The Periodic Solutions for the Lienard Equation," Scientia Iranica, 1 4 (1995): e3036,

Ji-Zhou Z. On The Periodic Solutions for the Lienard Equation. Scientia Iranica. 1995;1(4):e3036.