Thanks!

I am experiencing a similar problem with the German special letter 'ß', encoded as '{\ss}' in LaTeX, which is displayed as '\ss' by BibBase (e.g. author name 'Cla{\ss}en" is shown as 'Cla\ssen' instead of 'Claßen'). Umlauts ('ä','ö','ü', encoded as '{\"a}' etc.) work fine. My BibTeX is in UTF-8 as far as I can see: https://kbsg.rwth-aachen.de/~classen/jclassen.bib