id	domain	url
fumecheng-1955	cdn.intechopen.com	http://cdn.intechopen.com/pdfs/23666/intech-biodiesel
fumecheng-1955	pubs.acs.org	http://pubs.acs.org/doi/full/10.1021/ef201608g
fumecheng-1955	pubs.acs.org	http://pubs.acs.org/doi/full/10.1021/ef201608g