id	domain	url
fuelectenerg-11268	doi.org	https://doi.org/10.2298/fuee2302299m
fuelectenerg-11268	www.jahankitshop.com	https://www.jahankitshop.com/getattach.aspx?id
fuelectenerg-11268	www.akg.com	https://www.akg.com/microphones/boundary%20layer