1. BELLEN Numerical for Delay;ZENNARO;Methods Differential Equations,2003
2. Comparison theorems and asymptotic equilibrium for delay differential and difference equations Systems;PITUK;Appl,1996
3. On the asymptotic behaviour of the pantograph equations Theory Differ;MAKAY;Electron Qual,1998
4. ˇCERM On the differential equation with power coefficients and proportional delays Tatra Mt;Math Publ,2007
5. ˇCERM change of variables in the asymptotic theory of differential equations with unbounded delays;Comput Appl Math,2002