Copied from script

Known problems:

• Unknown ISBN, e.g. 9789400012820
• No ISBN data available for an edition either causes no output (goob = Google Books), or an error message (wiki, openl) The script is taking care of both
• Only 6 ISBN attributes are listed by the webservice(s) missing are e.g.: place of publication, number of pages
• Not all ISBN atttributes have data (authos, publisher, date of publication, language)
• The script uses multiple webservice calls (script might take time, but it is automated)
• Need to amend ISBN items that have no author, publisher, or other required data (which additional services to use?)
• How to add still more digital libraries?
• Does the KBR has a public ISBN service (Koninklijke Bibliotheek van België)?
• Filter for work properties -- need to amend Q47461344 (written work) instance and P629 (edition of) + P747 (has edition) statements https://www.wikidata.org/wiki/Q63413107 ['9781282557246', '9786612557248', '9781847196057', '9781847196040'] P8383: Goodreads-identificatiecode voor work 13957943 (should have P2969) P5331: OCLC-identificatiecode voor work 793965595 (should have P243)

Todo

• Add source reference (digital library instance)