How to add filters in GET request

Hi!

Maybe this is a easy question.... but I am having troubles testing my REST services trying to locate in Soap UI the conditions (filter) in a GET request.

I just want add to my request the following filter:

employee?filter=eq(work_unit.work_unit_id,'DE')  -> Look for the registers that are work_unit_id are equal to 'DE'

It is possible??

It is an urgent matter to me, thank you in advance!!

MastaCipo