Windchill REST API request to receive all parts associated with particular drawing

Hi there,

The Windchill REST API can be used to retrieve all drawings of a particular part.

Example

https://windchill.acme.com/Windchill/servlet/rest/structure/drawings/OR%3Awt.part.WTPart%3A102799?useParts=true

Result:

{
"items": [{
"id": "OR:wt.epm.EPMDocument:102871",
"typeId": "WCTYPE|wt.epm.EPMDocument"
}]
}

What is the other way around?
Which API request(s) must be used if you know a CAD document and want to receive all the parts associated with the drawing?

many Thanks!