M. Sundstrom

Collies

On the use of spectral densities in the study of servo circuits defined by linear differential equations with time-variable coefficients and stochastic right member

Relations between spectral densities of inputs and outputs in linear servo systems with time-variable coefficients

Short account of the theories for the study of servo systems defined by linear differential equations with constant coefficients and influenced by stochastic disturbances

Spectral densities dependent on two frequencies and their use in the study of linear, stochastic differential equations with time-dependent coefficients