The invention finds one particularly advantageous application in the field of electronic transactions effected by {HEAD ~ means} of {TAIL ~ an electronic memory card} operable with a portable payment terminal 
The invention finds one particularly advantageous application in the field of electronic transactions effected by { HEAD ~ means } of { TAIL ~ an electronic memory card } operable with a portable payment terminal
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH