1. S. Bank, On the value distribution theory for entire solutions of second-order linear differential equations, Proc. London Math. Soc. (3), 50(1985), 505–534.
2. S. Bank and I. Laine, On the growth of meromorphic solutions of linear and algebraic differential equations, Math. Scand. 40(1977), 119–128.
3. S. Bank and I. Laine, On the oscillation theory of f″ + Af = 0 where A is entire, Trans. Amer. Math. Soc. 273(1982), 351–363.
4. S. Bank and I. Laine, Representations of solutions of periodic second-order linear differential equations, J. reine angew. Math. 344(1983), 1–21.
5. W. Hayman, Meromorphic Functions, Clarendon Press, Oxford, 1964.