Ond?ej Došlý, Julia Elyseeva, Roman Šimon Hilscher <br/><br/>
Symplectic Difference Systems: Oscillation and Spectral Theory 

 -  Springer  Springer  2019 
<br/><br/><label>ISBN: </label>9783030193737 
<br/><br/><label>Source: </label>EBOOK