Fundamentals of nonlinear digital filtering / 
Jaakko Astola, Pauli Kuosmanen. 
 - Boca Raton, Fla. :  CRC Press,  c1997. 
 - xii, 276 p. :  ill. ;  26 cm. 
<br/><br/><label>ISBN: </label>0849325706  
<br/><br/><label>Subjects--Index Terms: </label>Signal processing--Mathematics  Digital filters (Mathematics)  Nonlinear theories. 
<br/><br/><label>Dewey Class. No.: </label>621.382/2  / AST