Akhiezer, Naum Ilich, <br/><br/>
Theory of linear operators in Hilbert space 
 Teorii︠a︡ lineĭnykh operatorov v gilʹbertovom prostranstve. 

 - New York:  Dover Publication,  1993. 
 - xi, 218 p.:  22 cm. . 
<br/><br/> Originally published: New York : F. Ungar Pub. Co., c1961-c1963.  
<br/><br/><label>ISBN: </label>9780486677484 
<br/><br/><label>Dewey Class. No.: </label>515.733 AKH