M l<chr_abbr type="" class="" expan="" cert="no">[apost]</chr_abbr>t volentier<chr_var letter="s" var="long">∫</chr_var> <chr_abbr type="reg" class="sc" expan="qnra" cert="no">qn-omeg</chr_abbr><chr_abbr type="reg" class="dc" expan="que" cert="no">q-hbar</chr_abbr> vo<chr_var letter="s" var="long">∫</chr_var> faut 