Volodymyr Koshmanenko, Mykola Dudkin <br/><br/>
The Method of Rigged Spaces in Singular Perturbation Theory of Self-Adjoint Operators 

 -  Springer  Springer  2016 
<br/><br/><label>ISBN: </label>9783319295350 
<br/><br/><label>Source: </label>EBOOK