There is a published research paper I would like to read. The website it is published in, charges what I think is quite a lot of money, considering that I won't use this for research or work.
I want to read this paper because its about a subject I am really interested in, but has nothing to do with what I study. I am a software engineering student and had never participated on any kind of research and I do not quite understand how all this things work.
So, the question is: is it right to ask for a copy of this paper to its author? If it is, how should I do it?