First scientific papers concerning MER-A and B
The following URL links to the first cut scientific papers concerning the discoveries of MER-A and B. Most of them make interesting reading.
ftp://www.lpi.usra.edu/pub/outgoing/lpsc2004/full102.pdf
I found the following paper on pg. 27 to be particularly interesting:
"MÖSSBAUER SPECTROSCOPY OF SOILS AND ROCKS AT GUSEV CRATER AND MERIDIANI PLANUM"
by G. Klingelhöfer, et al
Gary