Yakubovich, V. A., <br/><br/>
Linear differential equations with periodic coefficients / 
By v. a. yakubovich and v. m. starzhinskii. 
 - volúmenes 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecuaciones diferenciales lineales
<br/><br/><label>LC Class. No.: </label>QA372  / Y33