Oscillations of First-Order Neutral Equations with Variable Coefficients. Q. Chuanxi; G. Ladas — 1990 Monatshefte für Mathematik
Comparison results and linearized oscillations for higher-order difference equations. Ladas, G.; Qian, C. — 1992 International Journal of Mathematics and Mathematical Sciences
Oscillations of higher order neutral differential equations Chuanxi, Q.; Ladas, G.; Yan, J. — 1991 Portugaliae mathematica
Some open problems on the solutions of the delay difference equation x n + 1 = A / x n 2 + 1 / x n - k p . Arciero, M.; Ladas, G.; Schultz, S.W. — 1994 Georgian Mathematical Journal