> This is a question of the BST file, and different ones will do things different > ways. That said, I think the reason it is being formatted as it is is that you > don't really need the key before the entry. The key is a lookup for the entry, > and, unless something very odd is happening, you ought to be able to look > this up by finding "Kühnel", etc, etc. This is especially so in this case, > obviously, since the year is there at the beginning, too. > > If you really do want the key at the beginning, then you may have to hack > your own BST file, and by that I mean not just "use makebst" but actually go > in there and put the key in manually. > This is by no means impossible, but it will take work to learn enough of the > BibTeX language to be able to do it.
My reviewer wants me to add the key at the beginning. So I don't have much of a choice. After knowing, that the key to success is the .bst file, I tried different ones. Finally I found a natdin2.bst that has been used by a colleague of mine. This file needed only small adaptions, but the keys at the beginning worked from scratch. Thx.