Æ ALT+0198 (Capital ash)
æ ALT+0230 (Lowercase ash)
Å ALT+0197 (Capital A ring)
å ALT+0229 (Lowercase A ring)
Ä ALT+0196 (Capital A umlaut)
ä ALT+0228 (Lowercase A umlaut)
Ø ALT+0216 (Capital O slash)
ø ALT+0248 (Lowercase O slash)
Ö ALT+0214 (Capital O umlaut)
ö ALT+0246 (Lowercase o slash)
« ALT+0171 (Left Angle Quote)
» ALT+0187 (Right Angle Quote)
ALT+0128
http://tlt.its.psu.edu/suggestions/international/bylanguage/nordic.html