In , we find that "when a discrete energy state is superimposed on a broad continuum, the well-known phenomenon of resonant interference (Auger processes) may occur. In general, Auger interactions are characterized by … broadening and distortion of the absorption, emission, and scattering line shapes". And "the quantum mechanical formalism describing Auger transitions has been thoroughly developed by Fano and Cooper" ). In their Letter, Rousseau and Porto illustrate "the Ramanscattering observation of a resonant interference between one-and two-phonon states of BaTiO3" and show that "this interference may be completely described by the Fano formalism for Auger processes".