Alignment's \author

How I can put authors in list form.

\author{ aaaaa \and bbbb \and ccc }

Ok, but the names appear on the same line and I want to display them vertically.

-
Can you give a visual example of what you are after? –  Thorsten Donig Apr 13 '12 at 16:23
Check the authblk package. And welcome to TeX.SX! –  egreg Apr 13 '12 at 16:24
¡Thanks so much! authblk works for me. –  Albert Apr 13 '12 at 16:52
How about \author{ aaaaa \\ bbbb \\ ccc }? –  Mico Apr 13 '12 at 16:57