oahelper.org
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My Blog
My blog on all things apple (German)
AppStore Search
Using some Apple APIs to search the app store
Datum | Kalenderwoche
Current date & calendar week - a very German thing...
DOI Metadata Display
Ever wondered what article that DOI is for?
Encoder
Sometimes you just need to decode the world...
HTTP Header Test
What the header...
ISBN Hyphenator
Where do those pesky little hyphens go?
OpenCitations Metadata
Who cited whom?
My IP
What's your IP Address? No adverts...
Legal Stuff (Impressum)
All the boring legal stuff...
DOI Metadata Lookup
Found a DOI? Want to see what document it references?
Request DOI Metadaten
Please enter a valid DOI, ideally without a prefix
.
Lookup
All metadata shown here was kindly provided by
CrossRef DOI REST API
- we thank the provider for their kind permission to use their API