List of all views created upon a specific table

Let's say I have three database users:

• user_a
• user_b
• user_c

user_a has a table called table_a upon which user_b and user_c create their corresponding views:

• user_a.table_a
• user_b.table_b (view upon table_a)
• user_c.table_c (view upon table_a)

I'd like to know if there's an easy way to get a list of all the views in a database instance which were created upon a given owner/table.

This would help me to avoid dropping a database user who has tables that other database users depend on.

-- 
Cristian