Paper Reference Material:

Thin Film Resistance Measurement:
 R.H. Norton, “Four-point Resistivity Measurements”, IEEE Trans Mag,  vol. Mag-19, (1983) pp. 1579-1580

Magnetostriction:
S. Chikazumi , Physics of Magnetism, Robert E. Krieger Publishing Co., Inc., Malabar, FL (1964), Ch. 8.

Magnetoresistance:
 R.L. White, “Giant Magnetoresistance: A Primer”, IEEE Trans Mag, vol. 28, (1992) pp. 2482-2487

Web Reference Material amd Links:

IBM MR Heads Page:                         http://www.storage.ibm.com/oem/mrheads/mainmrhead.htm
Lafouda Magnetostriction Testers:  http://www.lafouda.com/lambda.htm
SHB Instriuments: BH -Loopers:       http://www.shbinst.com