Wirkus, Stephen A <br/><br/>
Course in differential equations with bounary-value problems 

 - 2nd 
 - Boca Raton  CRC Press  2017 
 - 766 
<br/><br/><label>ISBN: </label>97814987-3605-3 
<br/><br/><label>Standard No.: </label>119065 
<br/><br/><label>Subjects--Index Terms: </label>Mathematics- Differential equations- Linear 
<br/><br/><label>Dewey Class. No.: </label>515.35  / WIR