Author Posts Link

So, I have this

<a href="#" title="Autor"><?php echo get_avatar( get_the_author_email(), '100', 'http://www.gravatar.com/avatar/some.number' ); ?></a>

And I want, when somebody click on that avatar, to go on this author posts page.
What code I have to put in this href=”#” or I need to do something else.