I'm reformatting a manuscript from author-date referencing to Nature's (superscript) numbered referencing. How can I include citation signals such as 'e.g.,' or 'see'? For example, how should I reformat the following sentence?
It was demonstrated that pigs can't fly (e.g., Smith, 1901).
I can omit the citation signal completely:
It was demonstrated that pigs can't fly1.
but then important information about the non-exhaustiveness of the citation is lost.
Someone suggested this:
It was demonstrated that pigs can't fly (e.g., 1).
But it looks somewhat strange. Any idea?