Useful Resources for Practitioners
MARC21 Format for Bibliographic Data - LoC // DNB // OCLC
KBART - Knowledge Bases and Related Tools Recommended Practice
ONIX for Books Product Information Message
ISBD - International Standard Bibliographic Description
JATS - Journal Article Tag Suite // BITS
Gemeinsamer Verbundkatalog (GVK/ k10plus)
LoC OPAC
DNB OPAC
Zeitschriftendatenbank (ZDB)
Elektronische Zeitschriftenbibliothek (EZB)
VIAF - Virtual International Authority File
BASE - Bielefeld Academic Search Engine
Datenbank-Infosystem (DBIS)
Crossref API
SRU - Search/Retrieve via URL // Z39.50-Zugang des GBV
WorldCat - bib Read
BISAC 2025 → Thema 1.6 — official EDItEUR / BISG mapping, with heuristic DDC, LCSH and GND.
cygwin
draw.io
MarcEdit
R // RStudio
DG metadata portal - packages’ MARCs and KBARTs