How to call controller in state of AngularJS from another folder contain controller? -

i'm facing problem. how call controller state, while controller placed on folder named , controllers (as shown in following picture)?

there way add controller in state like:

url:"/whatever", templateurl:'whatever/init', controller :function(depencies){     perform function } 

but want reduce code in state, , want put controller folder, , can integrate them separate locations.

this picture clear understanding:

as long include controllers/articles.js in page change state config use registered controller name:

url:"/whatever", templateurl:'whatever/init', controller :'articles'