1. J. Kollmann and K.P. Frohmader, ?A thin film head for high density storage on flexible disks,?IEEE Trans. Mag., Vol. MAG-23, No. 5, pp. 2937?2939, 1987.
2. S.M. Sze (ed.),VLSI Technology, McGraw-Hill: New York, 1983.
3. C.D. Mee and E.D. Daniel,Magnetic Recording, Vol. I, McGraw-Hill: New York, 1987.
4. R.G. Meyer and P.R. Gray,Analysis and Design of Analog Integrated Circuits, 2nd ed., Wiley: New York, 1984.
5. R. Müller,Rauschen, Reihe Halbleiter-Elektronik, Bd. 15, Springer-Verlag: Berlin, 1979.