'cp862' => ['cp437' => '128-159'],
'cp864' => ['MacArabic' => '128', 'iso-8859-6' => '128', 'cp437' => '128'], #TODO: compare form variants
- 'koi8-u' => ['koi8-r' => 128],
- 'koi8-f' => ['koi8-u' => 128],
+ 'koi8-u' => ['koi8-r' => '144-191'],
+ 'koi8-f' => ['koi8-u' => '144-191'],
'MacRomanian' => ['MacRoman' => '160-191+208-223'],
'MacRumanian' => ['MacRomanian' => '160-191+208-223', 'MacRoman' => '160-191+208-223'],