L eg<chr_abbr type="reg" class="sc" expan="nra" cert="no">n-omeg</chr_abbr>t cor<chr_var letter="s" var="long">∫</chr_var> vi<chr_abbr type="reg" class="dc" expan="ent" cert="no">et-hbar</chr_abbr> en<chr_abbr type="reg" class="dc" expan="" cert="no">co-hbar</chr_abbr>tre el<chr_var letter="s" var="long">∫</chr_var>.ij. 