id	domain	url
fuelectenerg-4770	doi.org	https://doi.org/10.2298/fuee1904513m
fuelectenerg-4770	en.wikipedia.org	https://en.wikipedia.org/wiki/roger_penrose
fuelectenerg-4770	en.wikipedia.org	https://en.wikipedia.org/wiki/proceedings_of_the_cambridge_philosophical_society
fuelectenerg-4770	en.wikipedia.org	https://en.wikipedia.org/wiki/proceedings_of_the_cambridge_philosophical_society
fuelectenerg-4770	en.wikipedia.org	https://en.wikipedia.org/wiki/roger_penrose
fuelectenerg-4770	en.wikipedia.org	https://en.wikipedia.org/wiki/proceedings_of_the_cambridge_philosophical_society
fuelectenerg-4770	en.wikipedia.org	https://en.wikipedia.org/wiki/proceedings_of_the_cambridge_philosophical_society