  A large amplitude oscillatory shear (LAOS) is considered in the
strain-controlled regime, and the interrelation between the Fourier transform
(FT) and the stress decomposition (SD) approaches is established. Several
definitions of the generalized storage and loss moduli are examined in a
unified conceptual scheme based on the Lissajous--Bowditch plots. An
illustrative example of evaluating the generalized moduli from a LAOS flow is
given.
