Error parsing XML document

/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:46: parser error : Entity 'aring' not defined
			<head>Referat fra r&aring;dsm&oslash;te i Menota &#150; København 25.08.2006
			                          ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:46: parser error : Entity 'oslash' not defined
			<head>Referat fra r&aring;dsm&oslash;te i Menota &#150; København 25.08.2006
			                                     ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:54: parser error : Entity 'aelig' not defined
                       Matthew J. Driscoll, (Den Arnamagn&aelig;anske Samling, K
                                                                ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:54: parser error : Entity 'oslash' not defined
               Matthew J. Driscoll, (Den Arnamagn&aelig;anske Samling, K&oslash;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:55: parser error : Entity 'eth' not defined
                       Gu&eth;var&eth;ur M&aacute;r Gunnlaugsson (Stofnun &Aacut
                              ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:55: parser error : Entity 'eth' not defined
                       Gu&eth;var&eth;ur M&aacute;r Gunnlaugsson (Stofnun &Aacut
                                      ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:55: parser error : Entity 'aacute' not defined
                       Gu&eth;var&eth;ur M&aacute;r Gunnlaugsson (Stofnun &Aacut
                                                  ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:55: parser error : Entity 'Aacute' not defined
                     Gu&eth;var&eth;ur M&aacute;r Gunnlaugsson (Stofnun &Aacute;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:55: parser error : Entity 'uacute' not defined
     Gu&eth;var&eth;ur M&aacute;r Gunnlaugsson (Stofnun &Aacute;rna Magn&uacute;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:55: parser error : Entity 'aacute' not defined
th;ur M&aacute;r Gunnlaugsson (Stofnun &Aacute;rna Magn&uacute;ssonar, H&aacute;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:55: parser error : Entity 'oacute' not defined
cute;r Gunnlaugsson (Stofnun &Aacute;rna Magn&uacute;ssonar, H&aacute;sk&oacute;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:55: parser error : Entity 'Iacute' not defined
laugsson (Stofnun &Aacute;rna Magn&uacute;ssonar, H&aacute;sk&oacute;li &Iacute;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:60: parser error : Entity 'oslash' not defined
			Jon Gunnar J&oslash;rgensen (Institutt for lingvistiske og nordiske studier, 
			                    ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:61: parser error : Entity 'oslash' not defined
			Merete J&oslash;rgensen (Det danske Sprog- og Litteraturselskab, K&oslash;ben
			                ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:61: parser error : Entity 'oslash' not defined
			Merete J&oslash;rgensen (Det danske Sprog- og Litteraturselskab, K&oslash;ben
			                                                                          ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:62: parser error : Entity 'aelig' not defined
                        Alex Speed Kjeldsen (Den Arnamagn&aelig;anske Samling, K
                                                                ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:62: parser error : Entity 'oslash' not defined
                Alex Speed Kjeldsen (Den Arnamagn&aelig;anske Samling, K&oslash;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:82: parser error : Entity 'eth' not defined
		<p>Gu&eth;var&eth;ur M&aacute;r Gunnlaugsson fortalte at det gamle instituttet
		          ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:82: parser error : Entity 'eth' not defined
		<p>Gu&eth;var&eth;ur M&aacute;r Gunnlaugsson fortalte at det gamle instituttet
		                  ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:82: parser error : Entity 'aacute' not defined
		<p>Gu&eth;var&eth;ur M&aacute;r Gunnlaugsson fortalte at det gamle instituttet
		                              ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:82: parser error : Entity 'eth' not defined
nheter til et nytt institutt, Stofnun Árna Magnússonar í íslenskum fræ&eth;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:83: parser error : Entity 'eth' not defined
lir skrevet i Microsoft Word, men kan senere konverteres til XML.</p> <p>Gu&eth;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:83: parser error : Entity 'eth' not defined
vet i Microsoft Word, men kan senere konverteres til XML.</p> <p>Gu&eth;var&eth;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:83: parser error : Entity 'aacute' not defined
oft Word, men kan senere konverteres til XML.</p> <p>Gu&eth;var&eth;ur M&aacute;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:91: parser error : Entity 'aacute' not defined
</title>, <title>Thomas saga erkibiskups</title>, <title>Konungs skuggsj&aacute;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:91: parser error : Entity 'Oacute' not defined
a erkibiskups</title>, <title>Konungs skuggsj&aacute;</title> og <title>&Oacute;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:91: parser error : Entity 'aacute' not defined
kups</title>, <title>Konungs skuggsj&aacute;</title> og <title>&Oacute;l&aacute;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:97: parser error : Entity 'auml' not defined
ersom det var forfall fra Språkbanken, Riksarkivet og Svenska Fornskrifts&auml;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:97: parser error : Entity 'auml' not defined
s Gejrot i Svenskt Diplomatarium og Lars-Erik Edlund i Svenska Fornskrifts&auml;
                                                                               ^
/mnt/stor/prosjekt/menota/public_html/internmappe/referat/RaadsReferat2006-08-25.page:99: parser error : Entity 'auml' not defined
august 2006 en verksamhetsberättelse for 2005 for Svenska Fornskrifts&auml;
                                                                               ^
 at /usr/lib/perl5/site_perl/Aksis/XSLTransformer/Application.pm line 154