Linear differential equations with periodic coefficients
Yakubovich, V. A. and Starzhinskii, V. M.
Linear differential equations with periodic coefficients - New York John Wiley 1975 - 839p.
515.35 / Y15.LD
Linear differential equations with periodic coefficients - New York John Wiley 1975 - 839p.
515.35 / Y15.LD
