A method and {TAIL ~ device} for treating {HEAD ~ exhaust gases} of an internal combustion engine with a reducing agent introduced into the exhaust gases 
A method and { TAIL ~ device } for treating { HEAD ~ exhaust gases } of an internal combustion engine with a reducing agent introduced into the exhaust gases
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH