P en<chr_var letter="s" var="long">∫</chr_var>er li ple<chr_var letter="s" var="long">∫</chr_var>t .p<chr_abbr type="reg" class="dc" expan="en" cert="no">e-hbar</chr_abbr><chr_var letter="s" var="long">∫</chr_var>er li <chr_abbr type="reg" class="dc" expan="gri" cert="no">g-vbar</chr_abbr>eue. 