Hi, Oliver! Welcome to HubPages. I'm looking forward to reading your Hubs. I believe if I understand your question, there are at least two options when you don't know the name of the author:
l) after clicking on an article you like, you can copy and paste the URL address for it at the end of your article with the acknowledgement, or
2) use the name of the writer from his/her profile page, along with the hub article address.
Hope this helps!