629.8
Ben 
S 
Benes , Jiri 
Statistical  dynamiscs  of  automayic  control  
sytemas      .Englih  tr. edtec  by  A. S.  Woodwarrd,
B.A.      London  , IIffe  Books[1967,c1961]
429  p.   ilus .,  grafics.  22 cm   . 
''Referncia''. p.   408-414