Suprumenko, D.A. <br/><br/>
Commutative matrices 
by D. A. Suprumenko and R. I.Tyshkevich 
 - New York  Academic Press  1968 
 - viii,158p.;  20cm. 
<br/><br/><label>Dewey Class. No.: </label>512.24  / SUP