1. Nevanlinna Theory and Complex Differential Equations;Laine,1993
2. Uniqueness Theory of Meromorphic Functions;Yang,2003
3. Lectures on Ordinary Differential Equations;Hille,1969
4. Finite order solutions of second order linear differential equations;Gundersen;Trans. Amer. Math. Soc.,1988
5. On the growth of solutions f+gf′+hf=0;Hellerstein;Trans. Amer. Math. Soc.,1991