I cannot figure out how to make my citations appear with a simple number between brackets, like [1].
I obtain: "author et al. [year]"
I use the documentclass book with natbib-package.
Edit1:
I tried \citet{key} instead of \cite{}, it has no effect.
texdoc natbibon your system). If you are still stuck after that, just update your question and we will try and help. – Andrew Swann Sep 11 '16 at 21:18