--&gt;
&lt;!ENTITY omicron  CDATA "&amp;#959;" -- greek small letter omicron, U+03BF NEW --&gt;
&lt;!ENTITY pi       CDATA "&amp;#960;" -- greek small letter pi, U+03C0 ISOgrk3 --&gt;
&lt;!ENTITY rho      CDATA "&amp;#961;" -- greek small letter rho, U+03C1 ISOgrk3 --&gt;
&lt;!ENTITY sigmaf   CDATA "&amp;#962;" -- greek small letter final sigma,
                                    U+03C2 ISOgrk3 --&gt;
&lt;!ENTITY sigma    CDATA "&amp;#963;" -- greek small letter sigma,
                                    U