(TXT) abstr.asc
 (HTM) abstr.html
 (TXT) castilho-tex
 (BIN) castilho.dvi
 (DOC) castilho.pdf
 (BIN) castilho.ps.gz
 (BIN) fig1.eps.gz
 (BIN) fig2.eps.gz
 (BIN) fig3.eps.gz
 (BIN) fig4.eps.gz
 (DIR) gifs