Entries can be created from a reference text.
In case you have a reference string, JabRef offers the functionality to convert the text to BibTeX. Thereby, JabRef uses the technology offered by Grobid.
Example:
Click Library and select "New entry from plain text..." Alternatively, you can press Ctrl+Shift+N.
The "Plain Reference Parser" window opens
Paste the reference text:
Click "Add to current library"
The result is selected in the entry table:
JabRef thereby used the service offered by FreeCite. This servce was shut down in 2019. The following explanations are only for historical interest.
Click BibTeX and select "New entry from plain text..." Alternatively, you can press Ctrl+Shift+N.
Select an entry type. Select "InProceedings", this works in the most cases
The "Plain text import" window opens
Paste the entry using the middle button "paste"
Click on "Parse with FreeCite"
The entry editor opens with the parsed result:
Do your corrections there.
After step 4 from above, you can manually assign the types to each text.
Select the text
Double click on the type at the right side at "Available BibTeX fields"
After you finished, you can press "Accept".