sed \
-e 's/\\mbox{$\\pm$}//g' \
-e 's/\\ae{}//g' \
-e 's/\\^e//g' \
-e 's/\\mbox{$\\mathsurround 0pt{}^3$}//g' \
-e 's/\\~n//g' \
-e "s/\\\'o//g" \
-e 's/\\P{}//g' \
-e 's/{?`}//g' \
-e 's/\\mbox{$1\\over 4$}//g' \
-e 's/{!`}//g' \
-e 's/\\AE{}//g' \
-e 's/\\^E//g' \
-e 's/\\pounds{}//g' \
-e 's/\\~N//g' \
-e "s/\\\'O//g" \
-e 's/{--}//g'
# Nie ma duego  i 
# sed -e 's/{}//g' 
# sed -e 's/{}//g' 

