Naimark, M. A. <br/><br/>
Linear differential operators part I : elementary theory of linear differential operators ; with additional material by the author /  
M. A. Naimark, E. R. Dawson, W. N. Everitt. 
 - xiii , 144 ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Mathematics.<br/>Linear differentiation.<br/>Differential equations.
<br/><br/><label>Dewey Class. No.: </label>515.354  / N157