1. Homogenization: Averaging Processes in Periodic Media;Bakhvalov,1989
2. Nonlinear Oscillations;Nayfeh Ali,1979
3. Asymptotic Methods in the Theory of Nonlinear Oscillations;Bogoliubov,1961
4. Asymptotic analysis of bar systems;Panasenko;Rus J Math Physics,1996
5. Applied Optimal Control Theory of Distributed Systems;Lurie,1993