And if I use: \defbibfilter{general}{\( \keyword{General} \) \and \type{book} \and \not \type{electronic}} \defbibfilter{online}{\( \keyword{General} \) \and \not \type{book}}
It works. It is because in the keyword general, I only have books and electronics, and in the second appears all that are not books, accidentally electronics. But if I put there a thesis, it would appear in the bibliography online with this comand. And I don't want this… Can anyone help me?