Invitation to Unbounded Representations of ∗-Algebras on Hilbert Space / 
by Schmüdgen, Konrad 
 - 1st ed. 2020. 
 - Switzerland,   Springer;  2020 
 - 381 p. 
<br/><br/><label>ISBN: </label>9783030463656 (print) | 9783030463670 (print) | 9783030463687 (print)