References
- M. , Barmettler and P. , Gruber . 1992 . Anwendung von Oversampling-Verfahren zur Erhöhung der Auflösung digital erfaβter Signale . Technisches Messen , 59 ( 1 ) : 21 – 25 . 2, 69-75; 6, 262-268; 7/8, 312-319.
- S. N. , Elaydi . 1994 . Proceedings of the First International Conference of Difference Equations , 25 – 28 . Amesterdam, Texas : Gordon Breach Publishers . Trinity University, San Antonio, May
- A. , Hoffmann and B. , Marx . 1994 . Error estimations of a sigma-delta convertor , (in preparation)
- A. , Hoffmann and B. , Marx . 1994 . Mathematical modelling' of a second order sigma delta modulator , (in preparation)
- R. F. , Mickens . 1990 . “ Difference Equations ” . In Theory and Applications , New York : Van Nostred Reinhold .
- M. , Seifart . 1989 . Analoge Schaltungen , Berlin : Verlag Technik .