M e<chr_var letter="s" var="long">∫</chr_var> <chr_var letter="s" var="long">∫</chr_var>anz grondre. <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> <chr_var letter="s" var="long">∫</chr_var><chr_abbr type="reg" class="dc" expan="an" cert="no">a-hbar</chr_abbr>z <chr_abbr type="reg" class="dc" expan="en" cert="no">e-hbar</chr_abbr>nuier. 