Q<chr_abbr type="reg" class="dc" expan="ui" cert="no">apost</chr_abbr> ce <chr_var letter="s" var="long">∫</chr_var>oit il. dirai li d<chr_abbr type="reg" class="dc" expan="on" cert="no">o-hbar</chr_abbr><chr_abbr type="reg" class="dc" expan="que" cert="no">q-hbar</chr_abbr><chr_var letter="s" var="long">∫</chr_var>. 