arianna : EPub Reader for mobile devices ( https://apps.kde.org/arianna/ )
kbibtex : BibTeX editor to edit bibliographies used with LaTeX ( https://apps.kde.org/kbibtex/ https://userbase.kde.org/KBibTeX )
marknote : Markdown editor with a wide range of formating options for everyday notes ( https://apps.kde.org/marknote/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a kde
For Paludis use this rsync : rsync://gentoo.zugaina.org/kde-portage
If you have a problem : ycarus(-at-)zugaina.org