A paper not written in English , does it need to be read in its original form before being cited by anyone in the paper that they are writing . Or it is enough to view its interpretation in another paper.
Whenever possible, you should read the original work in the original language or an official translation of it. If this is not possible, either because the original document is unavailable to you or because the non-English language is not interpretable to you or anyone whom you could ask for assistance, then you can cite another author's interpretation. You would therefore want to write something like this:
"[Original author] found result X which supports theory Y (as cited in [author whose interpretation you are using])"
You should then include both the original work and the interpretation in your list with references.
You are most welcome. I do use multiple languages websites for collecting data making sure that even if I may not understand a language, the data that I am using is correct. You can check my references to see how it works.
Going through the original text abd trying to artive at its neaning is highly recommended whenever possible.If not, one has to rely upon the available foreign text, and then, documentaion as to academic ethics is obligatory.