In passing thought I would think it depends on the audience or the intended audience. If you are writing for a group of English lit (is that OK? lit instead of literature?) individuals then I would say no. However, if the audience is, say, intended for the person(s) sitting with a casual cup of coffee wanting some light reading, it might be fine.
But, you never know who is hub hopping. I have written hubs intended for a specific audience and others for the big picture perspective. I have used blah, blah, blah I think twice now and thought hard about it. What I do more often than not today is when I don't want to go into the explanation, hence blah, blah, blah, I use a link. However, I am learning and have plenty of time.