The authors of the paper are quite correct.
There is no logical reason for a moral distinction between the abortion of a fetus 10 minutes before birth and the killing of a newborn 10 minutes after birth.
Be careful with your wording. I can assume you mean that the 10 minutes either way, before or after, is murder in both cases. If however, that is not your intended conclusion you are not worth the time it took to write this response.