The DFHG URN retriever is a tool for retrieving and citing passages and words in the Greek texts Fragmenta Historicorum Graecorum by typing the corresponding URN.
For example:
urn:lofts:fhg.1.hellanicus.hellanici_fragmenta.phoronis:1
urn:lofts:fhg.1.hellanicus.hellanici_fragmenta.phoronis:1@ἑλλάνικος[1]-προσηγορίαν[1]