When an "i" or "j" have a combining mark placed above the character the dot is removed. However, the following characters do not follow this model.
Unicode specifies that, unlike i or j, etc., these characters do not lose their dots:
- U+0133 LATIN SMALL LIGATURE IJ
- U+01C8 LATIN CAPITAL LETTER L WITH SMALL LETTER J
- U+01C9 LATIN SMALL LETTER LJ
- U+01CB LATIN CAPITAL LETTER N WITH SMALL LETTER J
- U+01CC LATIN SMALL LETTER NJ