Ackermann W <br/><br/>
Solvable cases of the decision problem 

 -  1954 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>58766 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Maths
<br/><br/><label>Dewey Class. No.: </label>B:R1, J4