Low frequency oscillations in liquid rocket combustion chambers -- Phenomenological models of the combustion process -- The acoustic response of the combustion chamber -- High-frequency (acoustic) oscillations in a combustion chamber -- Nonlinear effects -- Application of the frequency-response method for studying the dynamical properties of the combustion zone -- Stability of combustion of fuel drops in a flow of gaseous oxidizer -- Bifurcations of steady combustion regimes and their effect on the onset of high-frequency oscillations.