Similar to PMC_(識別子)
ISSN (識別子)
JFM (識別子)
JSTOR (識別子)
LCCN (識別子)
LCCN (identifier)LIR (識別子)
LIR (identifier)Marina Militare (識別子)
Marina Militare (identifier)MarineTraffic (識別子)
MarineTraffic (identifier)MATHSN (識別子)
MBA (識別子)
MedRxiv (識別子)
MGP (識別子)
MR (識別子)
NAID (識別子)
NARA (識別子)
NARA (identifier)NCID (識別子)
NCL (識別子)
NDL (識別子)
NGA (識別子)
NGA (identifier)NGV (識別子)
NKC (識別子)
NKC (identifier)NLA (識別子)
NLA (identifier)NLI (識別子)
NLK (識別子)
NLK (identifier)NLP (識別子)
NLR (識別子)
OCLC (識別子)
OL (識別子)
ORCID (識別子)