Astrom, Karl J. (Karl Johan), 1934- <br/><br/>
Automatic tuning of PID controllers 
Karl Johan Astrom and Tore Hagglund 
 - Research Triangle Park, N.C.  Instrument Society of America  1988 
 - 141 p. : ill. ; 24 cm. 
<br/><br/><label>ISBN: </label>1556170815 
<br/><br/><label>LCCN: </label>88-003010 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PID controllers