Say I have an article. Under the title goes the name of three authors. The first author belongs to two organisations. The second belongs to one of the two from the first. And the last author belongs to a third organisation.
I considered either
\thanks but neither of them seem to allow me to tag several authors with the same footnote, and tag one author with several.
Here's an example:
A.C. Clarke (a, b); F. Herbert (b); I. Asimov (c)
(a): Stanford University
(b): Yale University
(c): Harvard University