Footnote and citation at the end of a sentence

Question

According to this, footnote marks should come at the end of the sentence, after the punctuation, like

The inner flow is then reflected at this boundary, leading to an oblique expansion shock (also named reflection wave).⁴

Sadly, I don't remember where, but I think that references go like this:

The inner flow is then reflected at this boundary, leading to an oblique expansion shock (also named reflection wave)[8].

Now, assuming I have to put both of these,

The inner flow is then reflected at this boundary, leading to an oblique expansion shock (also named reflection wave)[8].⁴

is this the correct way?

Answer 1

Citation references do normally go inside the sentence, i.e. before the full stop (that's the only thing I don't like about numeric superscript references - the gap underneath and before the full stop is ugly). A footnote to the whole sentence can certainly be placed after the full stop. If you don't like the combination, it's often possible to apply the citation or footnote to a specific statement within the sentence, rather than putting it at the end.