id	domain	url
cet-12869	www.cetjournal.it	www.cetjournal.it
cet-12869	www.sciencedirect.com	https://www.sciencedirect.com/topics/materials-science/field-emission-scanning-electron-microscopy
cet-12869	www.sciencedirect.com	https://www.sciencedirect.com/topics/materials-science/field-emission-scanning-electron-microscopy