[tex-k] bibtex in texshop behavior

[Daniel Mazur]

Hi,

I am using BibTeX 0.99c in the TeXShop 1.43 package. I found that 
en-route from xyz.bib to xyz.bbl (typesetting with BibTeX option in 
TeXShop) there is a change in capitalization, i.e. abbreviations like 
CMR, LSMO and chemical names in math environment like 
$Tl_2Ba_2CaCu_2O_8$ have all capital letters changed to lowercase: cmr, 
lsmo, $tl_2ba_2cacu_2o_8$. The only time, when the de-capitalization did 
not take place was when I wrote $\mathrm{$Tl_2Ba_2CaCu_2O_8$}.

The unix terminal --options of the 'bibtex' command don't address 
formatting. Where should I look to find out, how to preserve 
capitalization by default?

Thank you all for any answer.
Daniel Mazur

-- 
Daniel Mazur
Argonne National Laboratory
9700 South Cass Ave, MSD 223, B-017
Argonne, IL-60439
U.S.A.