L or geu<chr_var letter="s" var="long">∫</chr_var>. <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> <chr_abbr type="reg" class="dc" expan="que" cert="no">q-hbar</chr_abbr>rolent.<chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> danc<chr_abbr type="reg" class="dc" expan="en" cert="no">e-hbar</chr_abbr>t. 