i need the following paper!

dear all,
i need the following paper:

(1)adaptive linearization using predistortion; in proceedings of the 40th IEEE vechicular technology conference ,may 1990,page 35-40
(2)IEEE Transaction on vechicular technology vol 39.no 4,pages 374-382,Nov 1990;
(3)in proceedings of the 43th IEEE vechicular technology conference ,may 1993,page 676-679


thanks

BR

(2)
Amplifier linearization using a digital predistorter with fast adaptation and low memory requirements
Cavers, J.K.;
Vehicular Technology, IEEE Transactions on , Volume: 39 , Issue: 4 , Nov. 1990
Pages:374 - 382