Modern trends in cybernetics and systems  proceedings of the 3rd Congress,held at Bucharest,Romania,on Aug. 25-29,1975 

 -  1977 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Cybernetics<br/>Communication systems
<br/><br/><label>Dewey Class. No.: </label>001.53  / I5M